Adjustable Parking Assist Line & Compatible: You can adjust the width and height of the grid line as your expected. 10.36 inch large monitor system for truck RV semi truck box truck Trailer travel trailer heavy duty bus camper tractor, the 5th Wheel, Motor homes
Built-in DVR Recording Function & Bluetooth: Supports loop record 4 view cameras at the same time, you can find the video easily in the monitor. Connect the mobile phone Bluetooth, you can play music, answer calls, free your hands, avoid holding the phone, reduce driving risks