32GB Professional Smart Digital Voice Recorder Portable Hidden HD Sound Audio Telephone Recording Dictaphone MP3 Recorder|Digital Voice Recorder V91 Vandlion Professional Smart Digital Voice Recorder Portable Hidden HD Sound Audio Telephone Recording Dictaphone MP3 Recorder Product Features: 1. Shell made from zinc alloy material, anti-fall strongly 2. Professional recording pen chip of ATJ2127,HD recording 3. Timestamp,Name the recording files by date automatically 4. Timer Recording and turn on automatically at your set time 5. AGC function, adjusts the noise source automatically 6. Monitor the recording in real time/Hearing aid fuction 7. Voice Recorder,MP3 player,and USB flash drive 8. Playback function: Support loop recording, A-B repeat 9. Built-in high-fidelity speakers,direct external sound 10. Starting up with password to protect the files 11. Support checking the remaining recording time 12. Support expansion memory with TF card, max support memory TF card is 32GB 13. PCMrecording. 14. Eye free, LED backlight 15. Support voice activated recording 16. Detect low battery and save the recording files automatically 17. Support monitoring recording 18. Built in rechargeable 410mAh lithium battery 19. USB 2.0 connector , easy to upload and download files 20. Color: Black Specification: 1. Recording Format: WAV/MP3 2. Music Playback Format: WMA/WAV/MP3/OGG etc. audio format 3. Battery Recording Time: About 35 hours 4. Battery Playing Time: About 21 hours 5. Battery: 410mAh lithium battery Battery charging time: About 2 hours 6. LCD Resolution: Dot Screen 96*64 7. USB Interface: USB 2.0 High Speed 8. Built-in Speaker: 18MM*26MM 8 Omega/1W 9. Working Temperature: 0 to 40 degree 10. Recording Sample Rate: 48KHZ 11. Headphone Jack: 3.5mm, dual track 12. Noise-signal ratio: 80db 13. Size(mm): 85*26*11 (L*W*T) 14. Net Weight: 45g 15. Compatible System: Windows 2000&above Package Included: 1*voice recorder(32GB) 1*USB data cable