One-Button Recording, MP3 Recording, PCM Linear Recording 1536Kbit, 95 Hours Recording Time, Optional Voice-Activated Recording 50DB, Automatic Split Recording. Support Multiple Playback Formats: MP3, WMA, OGG, APE, FLAC, WAV, AAC-LC, ACELPWith Time Stamp, The Recording File Name Is Named After The Time. Support MP3, WMA, WAV Playback, Support Fast Forward And Backward Playback. With Time Stamp, The Recording File Name Is Named After The Time Product Model: M29 Charging time: About 2H Screen: 1.69 inches Product memory: 128g Battery capacity: 230 mAh Speaker: Yes Recording time: About 20H Playing time: About 21H (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: ABS Package Contents: 1 x AI Voice Recorder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.