NWZ-WH303 - Sony Audio Service Manual (repair manual). Page 2

Battery life

The time below may differ depending on ambient temperature or the status of use.

Actual battery life may vary depending on settings. The estimated battery usage 
hours shown below are based on typical usage conditions with “Settings for battery 
life measurement” as shown below.

MP3 128 kbps
OUTPUT/HEADPHONES: approx. 20 Hrs
OUTPUT/SPEAKERS: approx. 5 Hrs

Linear PCM 1,411 kbps
OUTPUT/HEADPHONES: approx. 18 Hrs
OUTPUT/SPEAKERS: approx. 5 Hrs

Even if the player is turned off for an extended period, a small amount of battery power is 
still consumed. 

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Battery life may vary depending on volume setting, conditions of use and ambient 
temperature.

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Music Settings
Dynamic Normalizer (*1): Off (default setting: Off)
Sound Enhancement (*2): Off (default setting: Off)
Illumination (*3): Off (default setting: On)

(*1)

 The [On] setting shortens the battery life about 25 % compared with the [Off] setting.

(*2)

 The [Sound Enhancement 1] setting shortens the battery life about 20 % compared with the 

[Off] setting.  
The [Sound Enhancement 2] setting shortens the battery life about 50 % compared with the 
[Off] setting.

(*3)

 The [On] setting shortens the battery life about 40 % compared with the [Off] setting.

Specifications

USB microB connector
Hi-Speed USB (USB 2.0 compliant) 

Stereo mini-jack

Closed, dynamic

NWZ-WH505: 40 mm, dome type (CCAW Voice Coil)
NWZ-WH303: 30 mm, dome type (CCAW Voice Coil)

1,000 mW (IEC (*1))

NWZ-WH505: 40 ƻ at 1 kHz
NWZ-WH303: 30 ƻ at 1 kHz

NWZ-WH505: 105 dB/mW
NWZ-WH303: 107 dB/mW

NWZ-WH505: 5 Hz to 25,000 Hz
NWZ-WH303: 30 Hz to 20,000 Hz

Stereo

Dynamic Normalizer (On/Off)
Sound Enhancement (Off/1/2) [HEADPHONES output only]

Built-in Rechargeable lithium-ion Battery 3.7 V
USB power (from a computer via a USB connector of the player)

Approx. 2 hours
Quick charge
Approx. 3 minutes charge enables up to approx. 60 minutes playback.

5 °C to 35 °C (41 ºF to 95 ºF)

NWZ-WH505: 313 g (11.1 oz)
NWZ-WH303: 292 g (10.4 oz)

NWZ-WH505: 16 GB
NWZ-WH303: 4 GB

(*1)

 IEC = International Electrotechnical Commission

(*2)

 Available capacity may vary. A portion of the memory is used for data management 

functions.

“WALKMAN” specifications and designs are subject to change without notice.

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Contents

List of accessories and manuals supplied with your Walkman. 

“WALKMAN” (1)

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Headphones cable (1)

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USB cable (1)

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Quick Start Guide

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Design and specifications are subject to change without notice.

“WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corporation.

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“12 TONE ANALYSIS” and its logo are trademarks of Sony Corporation.

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Microsoft, Windows, Windows Vista and Windows Media are either trademarks or 
registered trademarks of Microsoft Corporation in the United States and/or other 
countries.

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IBM is a registered trademark of International Business Machines Corporation.

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Apple, Mac and iTunes are trademarks of Apple Inc., registered in the U.S. and other 
countries.

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ZAPPIN and its logo are trademarks of Sony Corporation.

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“Clear Phase” and “Clear Phase” logo are trademarks of Sony Corporation.

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“Clear Bass” is a trademark of Sony Corporation.

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“xLOUD” and “xLOUD” logo are trademarks of Sony Corporation.

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VPT, Virtualphones Technology is a registered trademark of Sony Corporation.

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All other trademarks and registered trademarks are trademarks or registered 
trademarks of their respective holders. In this manual, TM and ® marks are not 
specified.

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MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and 
Thomson.

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This product is protected by certain intellectual property rights of Microsoft Corporation. 
Use or distribution of such technology outside of this product is prohibited without a 
license from Microsoft or an authorized Microsoft subsidiary.

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