Features: * 77 GHZ Microwave Radar: The 77GHZ frequency microwave radar sensor has an ultra-long detection range of 0.3 to 40 meters. It has high detection sensitivity and provides beep alerts. * The microwave radar car display intergrates digital radar signals and video overlay, eliminating the need for a radar host.(Can directly connect 1-4 microwave radar sensors) * AHD visual reversing system has dual trigger signal functions(right turn/reverse force signal). It automatically switches to the rear view when reversing, and the blind zone radar display provides voice alarm alerts. (When not reversing, the radar display shows the rear distance but does not emit sound). Reverse priority function is enabled. * Various display modes for different vehicle models (radar vehicle and fixed mode) are available. Alarm distance prompts can be set according to actual needs. * It can connect two channels (three channels optional) of AHD video input, compatible with CVBS/720P/1080P, etc.