Features: 6.86 inches large display, easy installation, convenient operation. Professional image recording system, high quality, ultra high definition video. No break seconds continuous video recording, with stop motion detection video, to ensure that it will not lose any important picture. Into the lane departure warning system (Lane Departure Warning System, LDWS). Front vehicle anti-collision warning system (Front Collision Warning). Built in high precision three axes stereo G-Sensor (collision acceleration gravity sensor), record the change of the driving speed of the three axis, after the automatic lock to save video recording. Support front and rear video recording function. Built in polymer lithium ion battery. Specifications: Lens: 500W, 140 degree wide angle lens Display: 6.86 inch Video Code: H.264, MOV Video resolution: 1920X1080 30fps, 1280X720 30fps Gravity sensor: built-in 3 axes G-sensor Main lens aperture: F1.9 Memory capacity: 1G Core: dual core Car charging: 5V Language: English, Chiness, multi-language Memory card: support Class 10 high speed memory card(4-32GB) Color: black & blue Size: 30.7*8.7*1cm Package Include: 1 x Car Tachograph 1 x User Manual 1 x Car Charger 1 x Rear Lens 1 x Bandage 1 x Dust-free cloth 1 x Warranty Card Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you