Aperture:F1.8 Working Temperature:-20C~+70C Cable Length:Car charger 3.2m rear cable 6m Input/Output:USB 2.0 Power Source:Corded Electric Data Storage Capacity:64G Built-in Screen:YES Loop-Cycle Recording Feature:YES Audio Recorded:YES Maximum Video Frame Rate:30fps NightShot Function:YES Rear Camera:YES Original Package:YES Touch Screen:No Screen Ratio:16:9 Memory Card Required Reding Speed:Class 10 View angle:150 Camera Resolution:3840x2160 Video Code:H.265 Video Format:MP4 Special Features:G-Sensor,With Rearview Mirror,Wide Dynamic Range,wifi function,Parking Monitor Max External Memory:128G Number Of Lenses:2 Pixels:800Mega Display Size:3"-5" OSD Language:Chinese (Simplified),English,French,German,japanese,KOREAN,Portuguese,Russian,Spanish GPS logger:none Interface:HDMI,USB2.0 Assembly Mode:Portable Recorder Chipset Manufacturer:MSTAR Frames Per Second:30 Origin:Mainland China Item Type:Car DVR Certification:CE,FCC How to Link WIFI This button is pressed and held for 10 seconds to turn on WiFi. The two products have the same appearance and different configurations, so please pay attention to the distinction and choose the product you need! Dash Cam for Cars 4K Front and Rear Camera Car Dvr WIFI 3 Inch Car Camera for Vehicle Video Recorder Rear View Camera Parking Monitor 4K Camera, Ultra-clear Seamlessly record up to 4K video, and clearly capture license plates and road signs. 4K Front and 1080P Rear Dash cam Dual-channel recording is possible, providing all-around protection, the front camera 2160P rear camera records in full HD 1080P. FAQ Why is there no shooting record for the rear camera? Rear camera has shooting records, need friends to copy and download to the computer side to view, rear camera records are not saved in the driving record. Super night vision F/1.8 wide aperture allows superior images, be it day or night. Proprietary focal length technology facilitated by 6-Glass wide-angle lens helps in capturing smaller details like number plates with more accuracy even in low light. Built-in Wi-Fi Allows you to control,view and download video on your smartphone APP How to link WIFI This button is pressed and held for 10 seconds to turn on WiFi. Reverse imageOptional When hanging in the "R" gear, the screen will automatically switch Reverse image, and the accurate inverted auxiliary line provides you with better parking prediction. Please note that the rear camera is optional! 1080P models are equipped with a 720P rear camera, 4K models are equipped with a 1080P rear camera. 24-Hour Parking Monitoring Built-in G-sensor activates automatic recording when a sudden shake or collision is detected. When emergency video is recorded, a voice will alert you when you return to the car. In addition,supports time-lapse recording, which maximizes storage usage and ensures that no moments of evidence are missed. Friendly reminder: parking monitoring needs to be configured with a special buck cable for use, otherwise 24-hour monitoring is not possible Built-in G-sensor When your car is subjected to an impact or other emergency,the G sensor is triggered, so that the recorder immediately records and locks the video. Loop- Cycle Recording When the TF card is full,it will automatically delete former video and keep recording all the time Installation Diagram 1.Secure the recorder to the windshield of the vehicle , recommended near the rearview mirror area 2.Hide the power cord in the window gap along the red line in the figure above 3.Insert the car charge wire into the cigarette lighter, connect the power supply, and complete the installation To protect your privacy, the TF card needs to be formatted for the first time. There are two solutions: 1. Insert the TF card correctly into the dash cam, open the camera settings, find the storage card format, confirm that the formatting is complete, and then restart the camera to use. 2.Connect to the mobile application, search for settings in the mobile application, format the memory card, confirm formatting is complete, and then restart the camera to use it. Sincere wishes to you and your family.