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Specifications
Battery life
The figures below are guideline values.
4 When recording with built-in stereo microphone (using internal memory)
Recording mode
Alkaline dry cell
battery
Nickel-metal hydride
rechargeable battery
Linear PCM format 44.1 kHz/16 bits* 20 hours (approx.) 15 hours (approx.)
MP3 format 128 kbps 27 hours (approx.) 21 hours (approx.)
WMA format
32 kbps 32 hours (approx.) 24 hours (approx.)
8 kbps 37 hours (approx.) 28 hours (approx.)
4 During audio file playback (all playback modes)
During speaker playback
Recording mode
Alkaline dry cell
battery
Nickel-metal hydride
rechargeable battery
Linear PCM format 44.1 kHz/16 bits* 19 hours (approx.) 15 hours (approx.)
MP3 format 128 kbps 21 hours (approx.) 17 hours (approx.)
WMA format
32 kbps 21 hours (approx.) 17 hours (approx.)
8 kbps 24 hours (approx.) 20 hours (approx.)
During earphone playback
Recording mode
Alkaline dry cell
battery
Nickel-metal hydride
rechargeable battery
Linear PCM format 44.1 kHz/16 bits* 22 hours (approx.) 17 hours (approx.)
MP3 format 128 kbps 29 hours (approx.) 21 hours (approx.)
WMA format
32 kbps 30 hours (approx.) 22 hours (approx.)
8 kbps 30 hours (approx.) 22 hours (approx.)
* WS-823 and WS-822 models only
4 During FM radio mode (using internal memory; WS-823 model only)
During earphone playback
Voice recorder status
Alkaline dry cell
battery
Nickel-metal hydride
rechargeable battery
Receiving FM radio 12 hours (approx.) 11 hours (approx.)
Recording FM radio (MP3 format 128 kbps) 8 hours (approx.) 8 hours (approx.)