Product features: 1. OLED screen 64x32, Metal material, USB direct plug OTG. 2. One click recording, no button design, with remote control for multifunctional operation, with deletion function, and playback LED indicator. 3. ADPCM recording 192Kbit, optional voice control recording 50DB, automatic split recording 4. Continuous recording for 25 hours, standby for 60 days 5. Support MP3, WMA, WAV playback, and fast forward and backward playback.With a timestamp, the recording file name is named after the time. Detail parameters: Product model: X29 Product memory: 16 G Recording format: WAV Recording time: 38H Charging time: 1H Battery capacity: 120mAh Material: Metal colour: blue Package Contents: 1 x Digital 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.