Click For Current Price & Reviews VSYSTO 4CH Dash Cam Recording Camera Backup Recorder DVR Front 1080P Sides & Rear VGA for Semi Trailer Truck Van Tractor with Infrared Night Vision Lens, 3.0'' Monitor 1. [4 Cameras Recording]: Added Backup Camera 1) Reverse Function: Continuously Press the left button or right button twice to display the reverse screen.Backup function will make driver see all rear view. It is more safe. 2) Press the left button to display the left screen(turning function), then press the left button again to return to 2-image display (means two sides image at screen) ( right button is the same). if you want to see front image.please click your dash cam monitor button.2. [Super Infrared Night Vision]: Built-in wifi. Built-in IR LED+IR CUT night vision.Front full-HD Video 1920x1080 @ 30fps; Both separated and rear cameras 640* 480@ 30fps. With wide view angle captures more of the road around you, have security while out & about. See sides and rear view at night well. Metal bracket suction cup for full heat dissipation.3. [Power Supply directly] : Plug directly into cigarette lighter power socket, easily convert 12V/24V DC power source of your vehicle to 5V/2A supplying for dash cam.Ideal for trucks,trailers,buses and other vehicles. Very easy to install. Super Capacitor Design: Without risk of battery explosion and with much longer life compared to lithium battery.4. [Updated Material]: Cameras are updated to waterproof IP68. Interface are updated into metal stainless steel.Car sucker bracket is updated to metal. Eliminate disconnection problem after long time used. Dual SD Card Slot (Up to 128GB each): Front+Rear Camera records videos on one SD card and Sides cameras in the other Card. It can hold roughly 10~12 hours recording videos of all 4 cameras without overwriting. 3.0'' LCD Screen: can view, playback the front, or rear image through screen.5. [Seamless Loop Recording & G-Sensor]: With loop recording enabled, users will have the option to record videos in loops of 1 / 3 / 5 minute video files. When the SD card is full, the oldest video will be overwritten. Built-in G-Sensor will be activated when detecting a collision, the dash cam will automatically enter emergency mode, and Video files recorded in emergency mode are protected from being overwritten. See User Reviews And Ratings On Amazon