Sony Walkman NWZ-S544 Operation Manual page 129

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Additional Information
Battery life (continuous playback)
Music
Playback at MP3 128 kbps
Video
Playback at MPEG-4 384 kbps
Playback at AVC Baseline 384 kbps
FM radio
At Receiving FM broadcasting
FM radio program recording
(at representative bit rate: MP3 128 kbps)
Voice recording
Voice Recording at MP3 128 kbps
Actual battery life may vary depending on settings. The above estimated battery usage
hours are based on typical usage conditions with "Basic setting of battery life measurement
(Default setting)" as shown in the table below. Note that even if the player is turned off for
an extended period, a small amount of battery power is still consumed.
Battery life may vary depending on volume setting, conditions of use, and ambient
temperature.
When sound is output from the built-in speakers, battery life may be extremely short
depending on volume setting.
Settings for screen
Settings for sound
effect*
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Settings for built-in
speakers output*
* When [Brightness] is set to [5], battery life may shorten by about 50%.
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* When [Type] of [Screensaver] is set to [Clock], battery life may shorten by about 25%.
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* When [Equalizer] is set to [Custom 1], [Clear Stereo] is set to [On], and [Dynamic Normalizer] is
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set to [On], battery life may shorten by about 50%.
* When [Built-in SP Optimizer] is set to [On], battery life may shorten by about 50%.
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Setting
[Brightness]* (  p. 89)
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[Type] of [Screensaver]*
[Equalizer] (  p. 47)
[Clear Stereo] (  p. 48)
[Dynamic Normalizer] (  p. 49)
[Built-in SP Optimizer] (  p. 49)
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Output via headphones
Approximately 42 hours
Approximately 6.5 hours
Approximately 4.5 hours
Approximately 17 hours
Approximately 8 hours
Approximately 11 hours
Basic setting of battery life measurement
(Default setting)
[3]
(  p. 89)
2 [Blank]
[None]
[Off]
[Off]
[Off]
Output via the built-in
speakers
Approximately 17 hours
Approximately 5 hours
Approximately 3.5 hours
Approximately 10 hours
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Continued 