JNN M2 Ultra-thin HD Noise Reduction Intelligent Control Voice Voice Recorder, Capacity:8GB(Black) Electric Fan & Heater Projection ratio: 4:3 /16:9

Projection ratio: 4:3 /16:9

no light and no sound prompt when recording

White balance: automatic or manual white balance

Voice control:once you have this switch

inverter switch

JNN M2 Ultra-thin HD Noise Reduction Intelligent Control Voice Voice Recorder, Capacity:8GB(Black) Electric Fan & Heater Projection ratio: 4:3 /16:91. Recording files, encrypted protection to prevent data theft 2. DPS chip, high definition noise reduction 3. Start recording when there is sound, stop recording silently, improve efficiency, and save memory 4. It comes with a deletion function that can be deleted locally 5. Automatic save after power outage 6. Recording format: WAV 7. Playback format: MP3 WMA WAV 8. Recording time: 60 hours 9. Standby time: 200 hours 10. Support system: Win200 XP