1. System detecting obstacle using Ultrasonic Wave Echolocation Technology
2. Wired LED Digital Display with Built-in Audible Alert (Beeper).
3. Beeping faster if closer to obstacle and continuously if within 0.3m from the obstacle
4. Designed for cars, suvs, 4x4s, vans, pickups, trucks, RVs, Trailers, and Buses.
5. Sensor Detection Range: 0.3m - 2m
2. Wired LED Digital Display with Built-in Audible Alert (Beeper).
3. Beeping faster if closer to obstacle and continuously if within 0.3m from the obstacle
4. Designed for cars, suvs, 4x4s, vans, pickups, trucks, RVs, Trailers, and Buses.
5. Sensor Detection Range: 0.3m - 2m
6. MRD037, Switch is availble,Can control the"bi-bi-bi"Voice
7. 12 factory waranty