【Real 4K+1080P Dual Dash Cam 】Front cam - ultra 4K( 3840*2160P, 30 FPS),Rear/inside- FHD 1080P( 1920*1080P, 30 FPS),To reduce the blind areas,the front cam wide angle of 170 degree and rear cam wide angle of 160 degree. clearly capture the key details like road signs,vehicle plates...It provides the significant evidence for car accidents | 【WiFi & Phone APP Control】The 4K dash cam front and rear support free APP for Android or iOS smartphones. Easily access record videos,watch live stream ,Setting camera,download and share your footage to social media by smartphone directly. Don't hesitate to share any recorded journey to your friends | 【Optional Inside/Rear Camera】You can install the small car dashcam on front windshield to record inside or install on rear windshield to monitor backside of your car. 2 methods installation for you to choose | 【Crystal Night Version With HDR】The 4K dash camera is equipped with advanced Sensor + 170°wide-angle + 6 Glass lens，the front and back dash cam will record crystal video at night. HDR function can cut down on glare and reflection | 【Accident lock & 24/7 Parking monitor】1. G-sensor---lock the video as vital evidence when detects a bump happen even on road or during parking time， it won't be overwritten 2. Loop recording--- Overwrite the oldest videos with the latest video automatically when TF card is full 3. Recording7/24H /Time Lapse--- dash cam captures and records footage at 1 fps/3 fps per second to conserve memory, allowing for continuous surveillance of a parked vehicle.One Reliable witness anytime | No Wireless dash cam --- . the dash cam need cables to plug in power and rear camera need wire to connect. We said wireless means WiFi app control from your smartphone to download videos. | The WiFi will be off when the camera restarts. you need turn on wifi manually.The main purpose of the wifi is to download the files to the phone and app setting, so you can turn on the WiFi when you exactly need to download files