Specification: Main lens pixel: 2MP Main lens resolution: 1920*1080P Video frame rate: 30fps Main lens Angle: 170° Left and right lens selection adjustment: up and down 90°, front and back 180° rotation Video format: AVI Screen size: 3.0 inches G-Sensor (Gravity sensing) : Yes (automatic lock recording) Loop recording: Supported 24H Parking monitoring: Support (need to purchase a hardware kit to use, the power cord can not be 24H monitoring) Memory card expansion: Support 8-128G memory card (not included) Hotspot WIFI: Non Power input: 8-24V Power output: 5V 2A Battery capacity: 150 mAh Power cable length: about 3.5 meters Astern lens cable length: about 6 meters Installation method: Sucker bracket installation Material: ABS Main size: length 173MM* height 57* thickness 48MM/6.81*2.24*1.88inch Package Included: 1 x Dash Cam 1 x Cigarette Port Power Cord 1 x Rear Camera Kit 1 x Mounting bracket 1 x Instruction manual Note: 1. Before using this device, please insert the memory card first, then format the memory card in camera menu.This camera records video at high resolution, Be sure to use highspeed Micro SD card (Class 10 or above). 2. Due to the simultaneous recording of four cameras in this Dash Cam, please use the original car charger to connect the cigarette lighter interface inside the car, otherwise the 4 in 1 screen cannot be achieved.