SONY NW-A55L - Digital Music Player Manual

SONY NW-A55L - Digital Music Player Manual

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SONY NW-A55L - Digital Music Player 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 deterioration of the battery, charge the battery at least once every 6 months.

Formatting a microSD card

Be sure to read the instructions for microSD cards in the Help Guide on the Internet before you store content on a microSD card (not supplied).

Volume operation in compliance with European and Korean Directives

  • For European customers
  • For Korean customers (models supplied with headphones)

The alarm (beep) and warning [Check the volume level.] are intended to protect your ears. They occur when you initially turn the volume up to a harmful level. You can cancel the alarm and warning by tapping [OK] on the alert dialog.


  • You can turn up the volume after you cancel the alarm and warning.
  • After the initial warning, the alarm and warning will repeat every 20 cumulative hours that the volume is set to a level that is harmful to your ears. When this happens, the volume will turn down automatically.
  • If you turn off the Walkman after you have selected a high volume that may damage your eardrums, the volume level will automatically be lower when you turn on the Walkman the next time.

BLUETOOTH® capabilities

You can listen to music stored on your Walkman from Bluetooth audio devices such as headphones or speakers.

You can also listen to music stored on your smartphone or computer through the Walkman. Refer to the "Help Guide" for details on using the Bluetooth function.

Pairing (first time the device is used)

When you connect Bluetooth audio devices wirelessly for the first time, the devices must be registered to each other. This registration is called "pairing."

  1. Set the Bluetooth audio device to pairing mode. (Refer to the device's instruction manual.)
  2. Tap - [ Settings] – [Connect to/Add Audio Device] under [Bluetooth].
  3. Tap the Bluetooth switch () to turn on the Bluetooth function.
  4. Tap [Add Device (Pairing)] to start pairing.
  5. Select the device from the paired device list to make the Bluetooth connection.
    After the Bluetooth connection is established, [Connected] is displayed.

Connecting (subsequent uses)

  1. Turn on the paired Bluetooth audio device and set it to standby.
  2. Tap - [ Settings] – [Connect to/Add Audio Device] under [Bluetooth].
  3. Tap the Bluetooth switch () to turn on the Bluetooth function.
  4. Select the device from the paired device list to make the Bluetooth connection.


  1. Tap - [ Settings] – [Connect to/Add Audio Device] under [Bluetooth].
  2. Tap the connecting device name on the paired device list, and tap [OK] on the disconnection dialog.


  • Pairing information is deleted in the following situations. Pair the devices again.
    • One or both of the devices are reset to the factory settings.
    • Pairing information is deleted from the devices, such as when the devices are repaired.


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

  • The USB cable (supplied) is not connected to a USB connector on your computer properly. Disconnect the USB cable, and then reconnect it.
  • The charge lamp on the Walkman lights up in orange while the battery is charging, and goes off when the charging is completed.
  • 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.

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, open the following folders in the system storage after you connect the unit to your computer.

[WALKMAN] - [Information_HelpGuide] - [Important_Information] After you double-click the [index.html] file, select a language.

  • The N-Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other countries.

About the in-ear headphones

  • When you use in-ear headphones with a high degree of adhesion, note the following. Otherwise, you may damage your ears or eardrums.
    • Do not insert the earbuds forcefully into your ears.
    • Do not remove the earbuds from your ears suddenly. When you take off the headphones, move the earbuds up and down 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.

This equipment has been tested and found to comply with the limits set out in the EMC regulation using a connection cable shorter than 3 meters.

To prevent possible hearing damage, 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
Bluetooth: 2,400 – 2,483.5 MHz
NFC: 13.56 MHz

Maximum output power
Bluetooth: < 8.5 dBm [2,400 – 2,483.5 MHz]
NFC: < -27.3 dBμA/m at 10 m [13.56 MHz]

  • Do not dismantle, open or shred secondary cells or batteries.
  • Do not expose cells or batteries to heat or fire. Avoid storage in direct sunlight.
  • 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.

The validity of the CE marking is restricted to only those countries where it is legally enforced, mainly in the countries EEA (European Economic Area) and Switzerland.

Design and specifications are subject to change without notice.

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 NW-A55L - Digital Music Player Manual


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