1. Zinc alloy +ABS material, USB direct plug-in U disk appearance, high concealment. 2. One-button recording, with delete function, play LED light indicator 3. ADPCM recording 192Kbit, optional voice-activated recording 50DB, automatic split recording. 4. Continuous recording for 20 hours, standby for 30 days. 8GB memory can store recordings for 90 hours. 5. Support MP3, WMA, WAV playback, support fast forward and backward playback. 6. With time stamp, the recording file name is named after time. 7. Battery capacity: 110mAh 8. Size: 51x31x14mm 9. Net weight: 15g
