1080P 4″ Dual Lens HD Car DVR Rearview Video Dash Cam Recorder Camera G-SensorDescriptionSpecification:Mini car dvr with dual camerasChipset: JieliResolution:Sensor: sensor_1014/410Front camera: 170 degree A+ grade HD wide angleRear camera: 140 degree wide angleCar camera:120 degree wide anglePhoto format: JPEGCompression format: H.264Video format: AVI(1080p)Display screen: 4.0 inch IPS screenNight vision: supportG-sensor: supportTime stamp: supportMemory Card: TF(maximum support 32G)Packing demension: 17x11x8cmWeight: 0.555KGBackup CameraView angel: 170°Image chip: 1/3 Inch Color CMOSTV System: NTSC /PALEffective pixels: 628*582 pixelsHorizontal Resolution(TV lines): 420 TV linesPower Supply: DC 12VOperating Temperature:-40°C~+80°C, RH95% MaxVideo Output: RCA connector, 1.0VP-P, 75OhmS/N ratio: more than 48dbElectronic shutter: 1/50-1/10000 secondsIP Rating: IP68Note: This product does not support three-way camera work at the same time, only can maintain up two-way camera work.Such as the front camera + car camera work at the same time, or front camera + rear camera work at the same time.If you install a rearview camera, select the display for the front camera + car camera mode,then when reverse gear the screen will automatically display full-screen rear view screen.Cancel the reverse gear will be automatically restored to the front camera + car camera video mode, and the reverse gear does not affect the car inside and outside simultaneously recording.Package Contains:1 x Car DVR with Backup Camera1 x Car charger1 x Rear camera cable1 x Retial Box1 x User Manual1 x Retail BoxKindly remind:1.It needs a micro SD card, which should be original and high speed C10, 4-32GB.Be carful there are many copies in the market.2. Do not charge via usb cable from computer, please charge via the 12V car charger. It may burn the motherboard if on truck of 24v power, please add a 24v to 12v converter.3. To keep driving safe, as the car temperature is very high when outdoors in summer, if large battery, it will be easy to explode,so the battery of car DVR are produced very small. The battery is only to save the video when power off suddenly. Therefore please charge via car charger when used.4. How to loop recording?1> Please turn on the loop recording in the menu of car camera.2> Please format the card in the car camera before use.3> Please turn low or off the G-sensor due to the high sensitivity, it will save many videos which can’t be cycle covered, so the card is filled full soon, then it stops the video.5. View Angle:The angle showed in the display is not the view angle, please play the video on computer, it will be larger and clearer than in registrar.