Sony WH-CH520 Quick Start Manual
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Sony WH-CH520 Quick Start Manual

Wireless stereo headset
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Help Guide
Wireless Stereo Headset
WH-CH520
Model: YY2958
Quick Start Guide
Download the app, and set up the headset
To use all functions and improved performances, update the software of the headset and "Sony | Headphones Connect"
app to the latest version. For details, refer to the following:
https://www.sony.net/elesupport/
Let's start to use
Turning on the headset
1

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Summary of Contents for Sony WH-CH520

  • Page 1 Quick Start Guide Download the app, and set up the headset To use all functions and improved performances, update the software of the headset and “Sony | Headphones Connect” app to the latest version. For details, refer to the following: https://www.sony.net/elesupport/...

  • Page 2: Related Information

    The headset enters pairing mode automatically when you turn on the headset for the first time after purchase. Establishing a BLUETOOTH® connection Follow the downloaded “Sony | Headphones Connect” app instructions. Operating the headset You can use the buttons on the right unit of the headset to perform the following operations.
  • Page 3 Turning off the headset Making connections How to make a wireless connection to Bluetooth devices Easy setup with app Connecting with the “Sony | Headphones Connect” app Android smartphone Pairing and connecting with an Android smartphone Connecting to a paired Android smartphone...
  • Page 4 Using the voice assist function (Google app) Using the voice assist function (Siri) Using the apps What you can do with the “Sony | Headphones Connect” app Installing the “Sony | Headphones Connect” app Accessing support information from the “Sony | Headphones Connect” app...
  • Page 5 Cannot hear the other person or the call volume is low during calls/The other person cannot hear you or their call volume is low during calls. Resetting or initializing the headset Resetting the headset Initializing the headset to restore factory settings Specifications Specifications 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 6: What You Can Do With The Bluetooth Function

    You can enjoy music wirelessly from a smartphone or music player, etc. Talking on the phone You can make and receive calls hands-free, while leaving your smartphone or mobile phone in your bag or pocket. 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 7 In the factory settings, you will hear the English voice guidance in the following situations via the headset. You can change the language of the voice guidance and turn on/off the voice guidance using “Sony | Headphones Connect” app. For more details, refer to the “Sony | Headphones Connect” app help guide.

  • Page 8: Checking The Package Contents

    After opening the package, check that all of the items in the list are included. If any items are missing, contact your dealer. Numbers in ( ) indicate the item amount. Wireless Stereo Headset USB Type-C® cable (USB-A to USB-C®) (approx. 20 cm (7.88 in.)) (1) 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 9: Location And Function Of Parts

    Help Guide Wireless Stereo Headset WH-CH520 Location and function of parts Headband (left) mark Left unit Tactile dot There is a tactile dot on the left unit. Sliders (left, right) Slide to adjust the length of the headband. (right) mark...
  • Page 10 Connect the headset to a computer, or to an AC outlet via a commercially available USB AC adaptor, with the supplied USB Type-C cable to charge the headset. Microphone Built-in antenna A Bluetooth antenna is built into the headset. Related Topic About the indicator Checking the remaining battery charge 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 11: About The Indicator

    Help Guide Wireless Stereo Headset WH-CH520 About the indicator You can check various statuses of the headset by the indicator. : Turns on in blue / : Turns on in orange / -: Turns off Turning on -- (flashes twice in blue) In this case, when the remaining battery charge is 20% or lower (requires charging), the indicator lights successively as follows.
  • Page 12 --- (repeatedly flashes slowly in blue) Initialization completed - (flashes 4 times in blue) For details, see “Initializing the headset to restore factory settings”. Related Topic Checking the remaining battery charge Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 13: Wearing The Headset

    Help Guide Wireless Stereo Headset WH-CH520 Wearing the headset Put the headset on your ears. Check the left and right units of the headset. There is a tactile dot on the (left) mark side. A: Tactile dot Extend the slider.
  • Page 14 Adjust the orientation of the left and right units so that each earpad fits snugly over each part of your ear. If you put on the headset without adjusting the slider, the headset may not be positioned properly on your head, resulting in discomfort. 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 15: Charging The Headset

    Help Guide Wireless Stereo Headset WH-CH520 Charging the headset The headset contains a built-in lithium-ion rechargeable battery. Use the supplied USB Type-C cable to charge the headset before use. Connect the headset to an AC outlet. Use the supplied USB Type-C cable and a commercially available USB AC adaptor.
  • Page 16 If the headset detects a problem while charging due to the following causes, the indicator (orange) flashes. In this case, charge once again within the charging temperature range. If the problem persists, consult your nearest Sony dealer. Ambient temperature exceeds the charging temperature range of 5 °C - 35 °C (41 °F - 95 °F).

  • Page 17: Available Operating Time

    10 minutes charging as well. Communication time: Max. 40 hours Hint By using the “Sony | Headphones Connect” app, you can check which codec is used for a connection or switch the DSEE™ function. Note Usage hours may be different from the time described above depending on the settings for the headset functions and usage conditions.

  • Page 18: Checking The Remaining Battery Charge

    The remaining charge which is displayed may differ from the actual remaining charge in some cases. Use it as a rough estimate. Hint You can also check the remaining battery charge of the headset with the “Sony | Headphones Connect” app. Android smartphones and iPhone/iPod touch both support this app.
  • Page 19 The remaining battery charge may not be properly displayed immediately after a software update or if the headset has not been used for a long time. In this case, repeatedly charge and discharge the battery multiple times to properly display the remaining battery charge. Related Topic About the indicator 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 20: Turning On The Headset

    Help Guide Wireless Stereo Headset WH-CH520 Turning on the headset Press and hold the (power) button for about 2 seconds or more until the indicator (blue) flashes. Related Topic Turning off the headset 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 21: Turning Off The Headset

    Press and hold the (power) button for about 2 seconds or more until the indicator (blue) turns off. Hint You can also turn off the headset with the “Sony | Headphones Connect” app. Related Topic Turning on the headset 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 22: How To Make A Wireless Connection To Bluetooth Devices

    Connecting to a paired Android smartphone Connecting to a paired iPhone Connecting to a paired computer (Windows 11) Connecting to a paired computer (Windows 10) Connecting to a paired computer (Mac) Connecting to a paired Bluetooth device 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 23 Connecting with the “Sony | Headphones Connect” app Launch the “Sony | Headphones Connect” app on your Android smartphone/iPhone to connect the headset to a smartphone or iPhone. For more details, refer to the “Sony | Headphones Connect” app help guide.

  • Page 24: Pairing And Connecting With An Android Smartphone

    Help Guide Wireless Stereo Headset WH-CH520 Pairing and connecting with an Android smartphone The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.
  • Page 25 If they are not connected, see “Connecting to a paired Android smartphone”. If [WH-CH520] does not appear on your Android smartphone screen, try again from the beginning of step A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”. Hint The operation above is an example.
  • Page 26 How to make a wireless connection to Bluetooth devices Connecting to a paired Android smartphone Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 27: Connecting To A Paired Android Smartphone

    Help Guide Wireless Stereo Headset WH-CH520 Connecting to a paired Android smartphone Unlock the screen of the Android smartphone if it is locked. Turn on the headset. Press and hold the (power) button for about 2 seconds or more. You will hear a notification sound indicating that the headset is turned on.
  • Page 28 As for the operations on your smartphone, refer to the operating instructions supplied with the smartphone. Related Topic How to make a wireless connection to Bluetooth devices Pairing and connecting with an Android smartphone Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 29: Pairing And Connecting With An Iphone

    Help Guide Wireless Stereo Headset WH-CH520 Pairing and connecting with an iPhone The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.
  • Page 30 If they are not connected, see “Connecting to a paired iPhone ”. If [WH-CH520] does not appear on your iPhone screen, try again from the beginning of step A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”. Hint The operation above is an example.
  • Page 31 How to make a wireless connection to Bluetooth devices Connecting to a paired iPhone Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 32: Connecting To A Paired Iphone

    Help Guide Wireless Stereo Headset WH-CH520 Connecting to a paired iPhone Unlock the screen of the iPhone if it is locked. Turn on the headset. Press and hold the (power) button for about 2 seconds or more. You will hear a notification sound indicating that the headset is turned on.
  • Page 33 As for the operations on your iPhone, refer to the operating instructions supplied with the iPhone. Related Topic How to make a wireless connection to Bluetooth devices Pairing and connecting with an iPhone Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 34 Help Guide Wireless Stereo Headset WH-CH520 Pairing and connecting with a computer (Windows® 11) The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.
  • Page 35 0:00 Wake the computer up if the computer is in standby (sleep) or hibernation mode. Pair the headset using the computer. To connect using the Swift Pair function Select [Connect] from the pop-up menu displayed on your computer screen. To connect without using the Swift Pair function Click the [Start] button, then [Settings].
  • Page 36 “Connecting to a paired computer (Windows 11)”. If [WH-CH520] does not appear on your computer screen, try again from “To connect without using the Swift Pair function” of step A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
  • Page 37 Connecting to a paired computer (Windows 11) Listening to music from a device via Bluetooth connection Making a video call on your computer Disconnecting Bluetooth connection (after use) Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 38: Pairing And Connecting With A Computer (Windows 10)

    Help Guide Wireless Stereo Headset WH-CH520 Pairing and connecting with a computer (Windows 10) The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.
  • Page 39 0:00 Wake the computer up if the computer is in standby (sleep) or hibernation mode. Pair the headset using the computer. To connect using the Swift Pair function Select [Connect] from the pop-up menu displayed on your computer screen. To connect without using the Swift Pair function Click the [Start] button, then [Settings].
  • Page 40 Click the [Bluetooth & other devices] tab, click the [Bluetooth] switch to turn on the Bluetooth function, then click [Add Bluetooth or other device]. Click [Bluetooth]. Click [WH-CH520].
  • Page 41 “Connecting to a paired computer (Windows 10)”. If [WH-CH520] does not appear on your computer screen, try again from “To connect without using the Swift Pair function” of step A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
  • Page 42 Listening to music from a device via Bluetooth connection Making a video call on your computer Disconnecting Bluetooth connection (after use) Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 43 Help Guide Wireless Stereo Headset WH-CH520 Pairing and connecting with a computer (Mac) The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the headset for the first time.
  • Page 44 If they are not connected, see “Connecting to a paired computer (Mac)”. If [WH-CH520] does not appear on your computer screen, try again from the beginning of step A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
  • Page 45 How to make a wireless connection to Bluetooth devices Connecting to a paired computer (Mac) Listening to music from a device via Bluetooth connection Making a video call on your computer Disconnecting Bluetooth connection (after use) Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 46 Check the connection status on the computer. If it is not connected, proceed to step Select the headset using the computer. Right-click the speaker icon on the toolbar, then select [Sound settings]. On the [Sound] screen, select [WH-CH520] for [Output] and [Input].
  • Page 47 If [WH-CH520] is not displayed for [Output] and [Input], proceed to step 3. Click [More sound settings]. On the [Playback] tab on the [Sound] screen, select [WH-CH520], right-click it, and select [Connect] from the displayed menu.
  • Page 48 You will hear a notification sound indicating that the connection is established. On the [Recording] tab, select [WH-CH520], right-click it, and select [Connect] from the displayed menu. Hint The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
  • Page 49 Related Topic How to make a wireless connection to Bluetooth devices Pairing and connecting with a computer (Windows® 11) Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 50: Connecting To A Paired Computer (Windows 10)

    Help Guide Wireless Stereo Headset WH-CH520 Connecting to a paired computer (Windows 10) Before starting the operation, make sure of the following: Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to the operating instructions supplied with the computer.
  • Page 51 From the [Choose your output device] drop-down menu, select [Headphones (WH-CH520 Stereo)]. If [Headphones (WH-CH520 Stereo)] is not displayed on the drop-down menu, proceed to step 3. Click [Sound Control Panel], right-click on the [Playback] tab on the [Sound] screen, and check the [Show Disconnected Devices] checkbox.
  • Page 52 You will hear a notification sound indicating that the connection is established. Hint The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
  • Page 53 As for the operations on your computer, refer to the operating instructions supplied with the computer. Related Topic How to make a wireless connection to Bluetooth devices Pairing and connecting with a computer (Windows 10) Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 54 Help Guide Wireless Stereo Headset WH-CH520 Connecting to a paired computer (Mac) Compatible OS macOS (version 11 or later) Before starting the operation, make sure of the following: Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to the operating instructions supplied with the computer.
  • Page 55 Click [WH-CH520] on the [Bluetooth] screen while pressing the computer Control button and select [Connect] from the pop-up menu. The connection is established. You will hear a notification sound indicating that the connection is established. Hint The operation above is an example. For more details, refer to the operating instructions supplied with the computer.

  • Page 56: Pairing And Connecting With A Bluetooth Device

    0:00 Perform the pairing procedure on the Bluetooth device to search for this headset. [WH-CH520] will be displayed on the list of detected devices on the screen of the Bluetooth device. If it is not displayed, repeat from step Select [WH-CH520] displayed on the screen of the Bluetooth device for pairing.
  • Page 57 How to make a wireless connection to Bluetooth devices Connecting to a paired Bluetooth device Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 58: Connecting To A Paired Bluetooth Device

    Help Guide Wireless Stereo Headset WH-CH520 Connecting to a paired Bluetooth device Turn on the headset. Press and hold the (power) button for about 2 seconds or more. You will hear a notification sound indicating that the headset is turned on.
  • Page 59 How to make a wireless connection to Bluetooth devices Pairing and connecting with a Bluetooth device Listening to music from a device via Bluetooth connection Disconnecting Bluetooth connection (after use) 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 60 Connecting the headset to 2 devices simultaneously (multipoint connection) When [Connect to 2 devices simultaneously] is turned on with the “Sony | Headphones Connect” app, the headset can connect to 2 devices via Bluetooth connections simultaneously, allowing you to do the following.
  • Page 61 If you finish the call on the first device, the ring tone from the second device will be heard via the headset. Related Topic What you can do with the “Sony | Headphones Connect” app How to make a wireless connection to Bluetooth devices...
  • Page 62 Help Guide Wireless Stereo Headset WH-CH520 Listening to music from a device via Bluetooth connection If your Bluetooth device supports the following profiles, you can enjoy listening to music and control the device from your headset via Bluetooth connection. A2DP (Advanced Audio Distribution Profile) You can enjoy high-quality music wirelessly.
  • Page 63 Adjust the length of the slider. Adjust the slider to a length where the headband touches the top of your head. Adjust the orientation of the units. Adjust the orientation of the left and right units so that each earpad fits snugly over each part of your ear. If you put on the headset without adjusting the slider, the headset may not be positioned properly on your head, resulting in discomfort.
  • Page 64 If the communication condition is poor, the Bluetooth device may react incorrectly to the operation on the headset. Related Topic How to make a wireless connection to Bluetooth devices Controlling the audio device (Bluetooth connection) 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 65: Controlling The Audio Device (Bluetooth Connection)

    The available functions may vary depending on the connected device, the music software, or app used. In some cases, it may operate differently or may not work even when the operations described above are performed. 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 66: Disconnecting Bluetooth Connection (After Use)

    You will hear a notification sound. Turn off the headset. You will hear a notification sound. Hint When you finish playing music, the Bluetooth connection may terminate automatically depending on the Bluetooth device. Related Topic Turning off the headset 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 67: Conditions Of Use

    Download and use a music streaming service (charged) app that supports 360 Reality Audio on your smartphone or tablet equipped with iOS or Android. By optimizing the sound field and the acoustic feature of headset with the “Sony | Headphones Connect” app, you can enjoy a more realistic sense of reality.
  • Page 68 About the sound quality mode The following 2 sound quality modes during Bluetooth playback can be selected. You can switch the settings and check the sound quality mode with the “Sony | Headphones Connect” app. Priority on sound quality: Prioritizes the sound quality (default).

  • Page 69: Supported Codecs

    If the connected device supports a codec of higher sound quality than SBC, you may need to set the device beforehand to enjoy music with the desired codec from the supported codecs. Refer to the operating instructions supplied with the device regarding setting the codec. Related Topic About the sound quality mode 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 70 Sound sources compressed by streaming playback, MP3, Bluetooth transmission codec, etc. are played with natural and expansive sound. The DSEE function can be set up on the “Sony | Headphones Connect” app, and is only available when connected to the headset via Bluetooth connection.

  • Page 71: Receiving A Call

    Help Guide Wireless Stereo Headset WH-CH520 Receiving a call You can enjoy a hands-free call with a smartphone or mobile phone that supports the Bluetooth profile HFP (Hands-free Profile) or HSP (Headset Profile), via Bluetooth connection. If your smartphone or mobile phone supports both HFP and HSP, set it to HFP.
  • Page 72 Related Topic How to make a wireless connection to Bluetooth devices Making a call Functions for a phone call 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 73: Making A Call

    Help Guide Wireless Stereo Headset WH-CH520 Making a call You can enjoy a hands-free call with a smartphone or mobile phone that supports the Bluetooth profile HFP (Hands-free Profile) or HSP (Headset Profile), via Bluetooth connection. If your smartphone or mobile phone supports both HFP and HSP, set it to HFP.
  • Page 74 Related Topic How to make a wireless connection to Bluetooth devices Receiving a call Functions for a phone call 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 75: Functions For A Phone Call

    Help Guide Wireless Stereo Headset WH-CH520 Functions for a phone call The functions available during a call may vary depending on the profile supported by your smartphone or mobile phone. In addition, even if the profile is the same, the available functions may vary depending on the smartphone or mobile phone.
  • Page 76 Related Topic Receiving a call Making a call 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 77 [Headphones (WH-CH520 Stereo)] may not be selectable on the speaker or microphone settings, and only [WH-CH520] may be displayed. If this is the case, select [WH- CH520]. As for frequently asked questions and answers, refer to the customer support website.
  • Page 78 Disconnecting Bluetooth connection (after use) Customer support websites 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 79 You will hear a notification sound. Turn off the headset. You will hear a notification sound. Hint When you finish playing music, the Bluetooth connection may terminate automatically depending on the Bluetooth device. Related Topic Turning off the headset 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 80 Help Guide Wireless Stereo Headset WH-CH520 Using the voice assist function (Google app) By using the Google app that comes with the Android smartphone, you can speak to the headset’s microphone to operate the Android smartphone. Set the assist and voice input selection to the Google app.
  • Page 81 The Google app may not be activated depending on specifications of the smartphone or application version. The Google app does not work when connected to a device not compatible with the voice assist function. Be careful because the headset will turn off when you press and hold the (play/call) button. 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 82: Using The Voice Assist Function (Siri)

    Help Guide Wireless Stereo Headset WH-CH520 Using the voice assist function (Siri) By using Siri that comes with iPhone, you can speak to the headset’s microphone to operate the iPhone. Turn Siri on. On iPhone, select [Settings] - [Siri & Search] to turn [Press Home for Siri] and [Allow Siri When Locked] on.
  • Page 83 Siri may not be activated depending on specifications of the smartphone or application version. Be careful because the headset will turn off when you press and hold the (play/call) button. 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 84 For details on the “Sony | Headphones Connect” app, refer to the following URL. https://rd1.sony.net/help/mdr/hpc/h_zz/ Hint The operation of the “Sony | Headphones Connect” app differs depending on the audio device. The app specifications and screen design may change without prior notice. Related Topic Installing the “Sony | Headphones Connect”...
  • Page 85 WH-CH520 Installing the “Sony | Headphones Connect” app Download the “Sony | Headphones Connect” app from the Google Play store or App Store, and install the app on your smartphone. For details on the “Sony | Headphones Connect” app, refer to the following URL.
  • Page 86 WH-CH520 Accessing support information from the “Sony | Headphones Connect” app You can access the latest support information from the “Sony | Headphones Connect” app. Select [Help] on the “Sony | Headphones Connect” app screen. The [Headphones Connect Help] screen appears and support information is displayed.
  • Page 87 How to keep the software up-to-date (for comfortable use of the headset) If the latest software for your headset comes out, a notification will appear on the screen of the “Sony | Headphones Connect” app. Update the headset software following the on-screen instructions.
  • Page 88 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 89: Other Notes

    Bluetooth wireless technology. However, depending on the configured settings and other factors, this security may not be sufficient. Be careful when communicating using Bluetooth wireless technology. Sony shall assume no responsibility for any damages or loss resulting from information leaks that occur when using Bluetooth communications.
  • Page 90 The headset is not waterproof. If water or foreign matter enters the headset, it may result in fire or electric shock. If water or foreign matter enters the headset, stop use immediately and consult your nearest Sony dealer. Cleaning the headset When the headset exterior is dirty, wipe it clean with a soft dry cloth.
  • Page 91 Help Guide Wireless Stereo Headset WH-CH520 To prevent burning or malfunction due to getting wet On waterproof performance of the headset The headset is not waterproof. If water or foreign matter enters the headset, this can result in burnout or malfunction.
  • Page 92 Touching the headset with sweaty hands, or using the headset in situations where the headset may get soaked in sweat Putting the headset in a bag with a cold PET bottle If the headset gets wet, or water enters the headset If a wet headset is charged or turned on, this can result in burnout or malfunction.
  • Page 93 A: USB Type-C port 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 94 WH-CH520 Licenses This product contains software that Sony uses under a licensing agreement with the owner of its copyright. We are obligated to announce the contents of the agreement to customers under requirement by the owner of copyright for the software. Please access the following URL and read the contents of the license.
  • Page 95 USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum. DSEE is a trademark or registered trademark of Sony Group Corporation or its affiliates. All other trademarks and registered trademarks are trademarks or registered trademarks of their respective holders.

  • Page 96: Customer Support Websites

    Help Guide Wireless Stereo Headset WH-CH520 Customer support websites For customers in the U.S.A, Canada, and Latin America: https://www.sony.com/am/support For customers in European countries: https://www.sony.eu/support For customers in China: https://service.sony.com.cn For customers in other countries/regions: https://www.sony-asia.com/support 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 97: What Can I Do To Solve A Problem

    This operation resets volume settings, etc. to the factory settings, and deletes all pairing information. Look up information on the issue on the customer support website. If the operations above do not work, consult your nearest Sony dealer. Related Topic...
  • Page 98 Initialize the headset, and pair the headset and the device again. Related Topic Charging the headset Checking the remaining battery charge Turning on the headset Resetting the headset Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 99: Charging Cannot Be Done

    Update the OS of the computer. Restart the computer and try the USB connection procedure again in cases other than those stated above. Related Topic Charging the headset Resetting the headset Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 100: Charging Time Is Too Long

    It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F). Efficient charging may not be possible beyond this range. Related Topic Charging the headset 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 101 It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F). Efficient charging may not be possible beyond this range. If the problem persists, consult your nearest Sony dealer.
  • Page 102 Check with the “Sony | Headphones Connect” app that the setting of [Connect to 2 devices simultaneously] is on. Stop the playback of the application on the first device.

  • Page 103: Low Sound Level

    In that case, turn up the volume of both the headset and the connected device. If the sound is still low even after adjusting the volume on the connected device, adjust the volume with the “Sony | Headphones Connect” app.

  • Page 104: Low Sound Quality

    If the sound quality does not improve after a few seconds, use the computer to establish an A2DP connection. As for the operations on your computer, refer to the operating instructions supplied with the computer. Related Topic Listening to music from a device via Bluetooth connection Making a video call on your computer 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 105 Connect the headset and the Bluetooth device once again. Reset the headset. Initialize the headset, and pair the headset and the device again. Related Topic About the sound quality mode Resetting the headset Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 106: Pairing Cannot Be Done

    Reset the headset. Initialize the headset, and pair the headset and the device again. Related Topic How to make a wireless connection to Bluetooth devices Resetting the headset Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 107: Unable To Make A Bluetooth Connection

    Reset the headset. Initialize the headset, and pair the headset and the device again. Related Topic How to make a wireless connection to Bluetooth devices Resetting the headset Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 108 Reset the headset. This operation does not delete pairing information. If the headset does not operate properly even if you reset the headset, initialize the headset. Related Topic Resetting the headset Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...
  • Page 109 [Headset (WH-CH520 Hands-Free)] . When the settings of the video calling application cannot be checked or calling connections [Headset (WH-CH520 Hands-Free)] cannot be selected, select [Headset (WH-CH520 Hands-Free)] on the settings of your computer to make connections.

  • Page 110: Resetting The Headset

    Help Guide Wireless Stereo Headset WH-CH520 Resetting the headset If the headset cannot be turned on or cannot be operated even when it is turned on, reset the headset. Connect the headset to an AC outlet. Use the supplied USB Type-C cable and a commercially available USB AC adaptor.
  • Page 111 Related Topic Initializing the headset to restore factory settings 5-044-178-11(1) Copyright 2023 Sony Corporation...

  • Page 112: Initializing The Headset To Restore Factory Settings

    This operation resets volume settings, etc. to the factory settings, and deletes all pairing information. In this case, delete the pairing information for the headset from the connected device and then pair them again. If the headset does not operate correctly even after initializing, consult your nearest Sony dealer. Related Topic...

  • Page 113: Specifications

    Help Guide Wireless Stereo Headset WH-CH520 Specifications Headset Power source: DC 3.7 V: Built-in lithium-ion rechargeable battery DC 5 V: When charged using USB Operating temperature: 0 °C to 40 °C (32 °F to 104 °F) Charging time: Approx. 3 hours Note Charging and usage hours may be different depending on the conditions of use.
  • Page 114 11 iPhone XS Max iPhone XS iPhone XR iPhone X iPhone 8 Plus iPhone 8 iPhone 7 Plus iPhone 7 iPhone SE iPhone 6s Plus iPhone 6s iPod touch (7th generation) (As of May 2022) 5-044-178-11(1) Copyright 2023 Sony Corporation...

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