Sony Walkman NW-WS623, NW-WS625 Instruction Manual

Sony Walkman NW-WS623, NW-WS625 Instruction Manual

Also See for Walkman NW-WS623:


Sony Walkman NW-WS623, NW-WS625 Instruction Manual

About the manuals

  1. Instruction Manual (this manual)
  2. (Startup Guide)
    The Startup Guide describes the following:
  • Basic operating instructions of your WALKMAN®
  • How to access useful PC applications websites on the internet
  1. Help Guide (web document for a PC/smartphone) The Help Guide contains more detailed operating instructions, specifications and customer support website URL, etc.
    While browsing is free, you may be charged a communication fee according to your carrier contract.
    Depending on the country/region in which you have purchased your Walkman, some models may not be available.

Notes for using Walkman

Note for battery

  • To prevent battery deterioration, charge the battery at least once every six months.

About volume operation (Only for countries/areas complying with European and Korean Directives)
The voice guidance "Check the volume level" is meant to protect your ears when you turn the volume up to a level that is harmful for your ears for the first time. You can cancel the alarm and warning by pressing any button.


  • You can turn up the volume after canceling the alarm and warning.
  • After the initial warning, the alarm and warning repeat every 20 cumulative hours that the volume is set to a level that is harmful for your ears. When this happens, the volume is turned down automatically.
  • If the volume is set to a level that is harmful for your ears and you turn off your Walkman, the volume is turned down to a level that is safe for your ears automatically.

About Ambient Sound Mode
Ambient Sound Mode allows you to hear ambient sound even while wearing headphones. However, note that this mode does not enable you to hear all sounds around you. Ambient sound may not be heard well depending on the surrounding environment, type of the music being played on your Walkman, or the volume level. Be very careful when using the Walkman in places where an inability to hear ambient sound would be dangerous (such as on roads where there is car or bicycle traffic).

Note regarding use in a pool or the ocean
Refer to "Read Before Using your Walkman® in a Pool or the Ocean".

About the operating temperature of the Walkman
The operating temperature of the Walkman is between –5°C (23°F) and +45°C (113°F).

Bluetooth capabilities
Connect your smartphone and your Walkman via a Bluetooth connection so you can listen to music stored on your smartphone using the Walkman or answer incoming calls to the smartphone.

Pairing and connecting with your smartphone
Pairing cannot be started unless the Bluetooth mode on your Walkman is turned off.

  1. Hold down the (power) button on the right () side of your Walkman for 3 seconds to turn the power on.
  2. Hold down the AMB/ button on the left () side of your Walkman for 7 seconds. The OPR lamp on the right () side will flash quickly in alternating blue and red.
    After the first time you connect your Walkman and smartphone, you can connect them by holding down the AMB/ button for 2 seconds.
  3. On your smartphone, turn on the Bluetooth function and find your Walkman on the Bluetooth settings screen. Follow the onscreen instructions to complete the settings. When a list of detected devices appears, select [NW-WS623] or [NW-WS625]. If passkey input is required, input "0000". Your Walkman and the smartphone will register to each other and a connection will be established.
    The OPR lamp on the right () side will light up in blue.

Terminating the Bluetooth connection

  1. Hold down the AMB/ button on the left () side of your Walkman for 2 seconds.
    The OPR lamp on the right () side will turn green.

Symptom & Remedy

Your Walkman cannot charge the battery or is not recognized on your computer.

  • Attach your Walkman to the USB cradle (supplied) properly and firmly. Charging will start (the OPR lamp lights up in orange) even if the connection was not made properly, but there is a possibility that the computer has not recognized the Walkman. In such a case, remove the Walkman from the USB cradle and then attach to the USB cradle again.
  • When you use your Walkman for the first time, or if you have not used the Walkman for a long time, it may take a few minutes to be recognized by the computer. Check that the computer recognizes the Walkman after you have connected it to the computer for about 10 minutes.
  • If the approaches listed above fail to resolve the issue, turn off your computer completely and disconnect your Walkman. Then disconnect the power cable, battery, and anything else connected to the computer and discharge it for five minutes. After discharging, turn on the computer again and reconnect the Walkman.

Compliance & Information

Information on laws and trademarks

  • For information on laws, regulations, and trademark rights, refer to "Important Information" in the internal memory of your unit. To read it, copy the [Important_Information] file to your computer, and follow the steps below.
    Double-click the [Important_Information] file. Then, select a language.

About the in-ear headphones
The earbuds seal your ears. Therefore, be aware that there is a risk of damage to your ears or eardrums if strong pressure is applied to the earbuds or the earbuds are suddenly removed from your ears. After use, be sure to take the earbuds off your ears gently.

About the headphones

  • Avoid playing the unit at so loud a volume that extended play might affect your hearing.
  • At a high volume outside sounds may become inaudible. Avoid listening to the unit in situations where hearing must not be impaired, for example, while driving or cycling.
  • As the headphones are of open-air design, sounds go out through the headphones. Remember not to disturb those close to you.

Notice for customers: the following information is only applicable to equipment sold in countries applying EU directives
This product has been manufactured by or on behalf of Sony Corporation.
EU Importer: Sony Europe B.V.
Inquiries to the EU Importer or related to product compliance in Europe should be sent to the manufacturer's authorized representative, Sony Belgium, bijkantoor van Sony Europe B.V., Da Vincilaan 7-D1, 1930 Zaventem, Belgium.

High sound pressure
Hearing damage risk
Do not listen at high volume levels for long periods

Hereby, Sony Corporation declares that this equipment is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address:

Wireless function
Operating frequency 2400 – 2483.5 MHz (NW-WS623 / NW-WS625 / RMT-NWS10B)
13.56 MHz (NW-WS623 / NW-WS625)
Maximum output power < 20.0 dBm [2400 – 2483.5 MHz]
(NW-WS623 / NW-WS625 / RMT-NWS10B)

  • Do not expose the batteries (battery pack or batteries installed) to excessive heat such as sunshine, fire or the like for a long time.
  • Do not subject the batteries to extreme low temperature conditions that may result in overheating and thermal runaway.
  • Do not dismantle, open or shred secondary cells or batteries.
  • In the event of a cell leaking, do not allow the liquid to come in contact with the skin or eyes. If contact has been made, wash the affected area with copious amounts of water and seek medical advice.
  • Secondary cells and batteries need to be charged before use. Always refer to the manufacturer's instructions or equipment manual for proper charging instructions.
  • After extended periods of storage, it may be necessary to charge and discharge the cells or batteries several times to obtain maximum performance.
  • Dispose of properly.

For Remote Commander (NW-WS625 only)

Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.
Design and specifications are subject to change without notice.

©2017 Sony Corporation Printed in Malaysia

Documents / Resources


Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Sony Walkman NW-WS623, NW-WS625 Instruction Manual


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