360° Surround View System 1080P Parking Monitoring 170° Wide Angle 4 Way Camera 3D DVR for Autos Item Type: 360° Surround View System Material: Metal Battery Model: CR2032 x 1 (Built In Battery) Battery Capacity: 170mAh Lens Type: cr2053 Characteristic: 2. Wireless knob remote control. 3. After car start, automatically circular display, also can adjust angle by remote 4. Support multiple view model(Width limiting mode, streaming media) 5. Support CVBS, AHD, VGA video format, Support 16:9 24:9 wide screen view 6. Recorder resolution:1920x1080P 7. Support full automatic calibration, 10 second finish (The calibration cloth needs to be purchased separately) 8. 4 way video recording and playback, MOV video file. 9. Parking monitoring, can set 2-24 hours 10. Circular recording, new file automatically cover old file. 11. Can save important video, avoid lost 12. Support U disk 16G-128G (3.0-3.5 flash, FAT32 format) 13. OSD language: Built in traditional Chinese, Korean, Japanese, English