This parking aid, no matter day or night, the eye-catching LED warning light and warning sound remind you to stop at a safe parking distance. Garage Parking Brake, Garage Parking Indicator, Garage Parking Assist, Garage Laser Parking Assist Simple Traffic Light Show Distance. Two parts: sensor and traffic light indicator, height adjustable according to vehicle height, help perfect parking, suitable for all vehicles. The device is powered by a single 9V battery. Due to shipping restrictions, goods are not included You can mount it with double-sided foam tape or screws. Installation is simple and the sensor can be installed almost anywhere. Power supply mode: one 9V battery (not included) Color: Blue Material: ABS Package Contents: 1 x parking device Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.