Specification: Mini car dvr with dual cameras Chipset: Jieli Sensor: sensor_1014/410 Front camera: 170 degree A+ grade HD wide angle Rear camera: 140 degree wide angle Car camera:120 degree wide angle Photo format: JPEG Compression format: H.264 Video format: AVI(1080p) Display screen: 4.0 inch IPS screen Night vision: support G-sensor: support Time stamp: support Memory Card: TF(maximum support 32G) Packing demension: 20x11x7cm Backup Camera View angel: 170 Effective pixels: 628 582 pixels Horizontal Resolution(TV lines): 420 TV lines Operating Temperature:-40C~+80C, RH95% Max Video Output: RCA connector, 1.0VP-P, 75Ohm Electronic shutter: 1/50-1/10000 seconds IP Rating: IP68 Note: 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 Camera 1 x Car charger 1 x Rear camera cable 1 x User Manual 1 x Retail Box 1 x Mobile phone holder 1 x Suction cup bracket Kelvenix HD 1080P Car Camera Recorder Dual Front & Rear Dash Cam in Black