Manual for NW-WS623/WS625

Manual for NW-WS623/WS625

Brand: SONY

Category: Audio

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: Nov. 21, 2025, 6:33 p.m.

Manual Publish Date: 2017-01-01

Warranty Information

No specific warranty period mentioned in the document.

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

3. Help Guide (web document for a PC/smartphone)

The Help Guide contains more detailed operating instructions, specifications and customer support website URL, etc.

http://rd1.sony.net/help/dmp/nwws620/h_ww/

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.

Note

  • 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 ① (power) button on the right (6) 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 (6) 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.

  1. 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 (f) side will light up in blue.

Troubleshooting and error codes

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.
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