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Sony NWZ-S638F Specification Guide

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Listen to your favorite music or view your photos and videos wherever 
you go with the stylish NWZ-S638FRED, the slimmest Walkman® player 
yet. In addition to a sizeable 2" QVGA incredibly bright, color LCD 
screen (measured diagonally), the NWZ-S638FRED features an improved, 
attractive, and easy-to-use GUI for easy navigation through all your media.
Superior sound quality 
The NWZ-S638FRED houses four integrated clear audio technologies, allowing you to enjoy all of 
your music and videos with superior sound.
Long battery life
A long-lasting battery lets you listen to music for up to 40 hours before you need to recharge
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.
8GB Built-in Memory
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Stores up to 1850 songs
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 or 30H of video
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High-quality EX Headphones included
EX Headphones feature 9mm driver units that produce a wide range of acoustical sound. 
Additionally, EX Headphones are engineered with an angular design that fit comfortably in the 
ear.
SensMe™ technology
SensMe™ is an innovative feature on the NWZ-S638FRED that actually looks at the beats-per-
minute and an algorithm that classifies and automatically groups your music into channels, 
making listening to and managing all of your content even simpler.
Supports multiple video codecs
The NWZ-S638FRED supports multiple high-quality video formats (AVC (H.264/AVC), MPEG-4, and 
WMV)
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, giving you more freedom to download the kinds of video that you want.
Specifications
Audio
Antenna System
Headphone Cord
Equalizer
5 Band: Heavy/Pop/Jazz/Unique/Custom
Format(s) Supported
MP3
WMA
AAC-LC*2
Linear PCM
Frequency Response
20 - 20,000Hz (when playing back data file, single signal measurement)
Station Preset(s)
30 FM PresetsAuto preset / Manual preset
Tuner
Digital FM Tuner 
Tuner Frequency Range
87.5 - 108 MHz
Tuner Type
Mono / Auto (Stereo) Selection
Audio Features
Sound Mode
Clear BassClear StereoDynamic NormalizerDSEE Sound Enhancer
Convenience Features
Multiple Language Display
Yes (English/French/German/Spanish/Italian/Russian/ 
Japanese/Simplified Chinese/Traditional Chinese/Korean/Portuguese)
Search Features
All Songs
Album
Artist
Genre
Initial Letter
Playlists
Release Year
Folder
NWZ-S638FREDWM