Fangrui Product Details 1. H81 Hd Wifi Recording Night Vision Voice Recorder Noise Reduction Audio Recorder Device 2. Wifi Recorder With Point-to-point Wifi, App Mobile Real-time Viewing 3. Hd 1080p, A Key Recording, Video, Photo, Support For Charging And Recording, Cycle Coverage, Maximum Support For 256gb (card Not Included), With Infrared Night Vision Supplemental Light 4. With A Lanyard, Can Be Hung On The Chest 5. With A Back Clip, Can Be Adjusted Positively And Negatively, Clip Clothing Pockets, Schoolbag Belts, Waist, Etc. , Easy To Carry 6. Suitable For Meeting Training, Outdoor Hiking, Cycling, Classroom Recording, Running Sports, Interview Recording, Business Negotiations 7. Can Be Fixed With A Bracket, Connected To The Computer As A Webcam 8. Specifications: 9. Wifi Program: Roadcam 10. Video Format: Avi 11. Video Resolution: 1920*1080p 12. Video Frame Rate: 30fps 13. Image Format: Jpg 14. Pixel: 4032*3024 15. Image Ratio: 16:9 16. Interface Type: Type-c Usb 17. Charging Time: 3-4 Hours 18. Usage Time: Battery Capacity 1200 Mah, 6 Hours Of Recording Alone, 8 Hours Of Recording Alone 19. Operating System: For Iosandroid, Windows 7 Or Above 20. Image Sensor: 14 Inch Cmos Sensor 21. Minimum Illumination: 0. 30. 5lux (color Mode), 0lux (black And White Mode) 22. Viewing Angle: 90 Degree Diagonal 23. Night Vision: Automatic Switching Of Lens Sensitivity, 6 940nm Smd Infrared Lights, Illumination Distance Of 3 To 5 Meters 24. Compression Standard: Avi 25. Code Rate: Cbrvbr Two Code Rate Control Modes, And The Output Code Rate Range Is 128~4096kbps 26. Image Adjustment: Brightness, Contrast, Saturation, And Hue Are Adjustable 27. Input: Built-in -38db Microphone 28. Output: None 29. Sampling Frequencybit Width: 8khz16bit 30. Compression Standardcode Rate: Adpcm32kbps 31. Alarm Detection: Red And Blue Warning Lights 32. Rated Voltage: Dc5v +- Five Percent 33. Power Consumption: 150-170ma 34. Working Environment: Working Temperature: -1050 Degree Centigrade, Working Humidity: Les