This product adopts a highperformance chip with builtin AI image algorithms, 4channel highdefinition video recording, intelligent detection of pedestrians (including cyclists, motorcyclists), various vehicles and animals. When they approach your vehicle, the system alerts the driver to blindspot dangers. The main chip has passed strict CE (Europe) and FCC (USA) certifications. Please read this manual carefully before use and keep it properly. With LED warning Light alarm and audible sound alarm to mention the around people. We hope this product meets your needs and serves you for a long time.