Mohawk 4K Ultra HD Car DVR MJ-V8 Front n Rear Car Cam Recorder Dual vision Wifi : Phone Apps Control Single Resolution : 4K 3840p x 2160p Dual Resolution : Front 2560p x 1440p Rear 1960p x 1080p Screen : 3" 640 x 360 Ips Screen Item Dimensions : 85 x 60 x 35mm Model : V8 +RC6 Lens : 170 Input 5V - 2A Product Specification Main control Chip : Novetak Screen : IP 3" 240 x 320 Recording Angle : Wide Angle 170 Video Format : H.264 Compression,*.TS Video Mode : Loop Recording,Auto Overwriting Microphone : Support (enable by Default) Memory Card : 16-256GB (Class 10 And Above) Battery : No Battery,Safer, No Explosion Language : Multi Language (English by Default) G Sensor : Triaxial 3D Acceleration Sensor (enable by Default) Seamless Record : Every footage could be seamless inkage Time Overprint : Time Accurately superimposed on the video Video playback : The desired footage can be selected to playback Wotking Tempreature : 35c - 75c