Features: This is a set of reverse system parts for vehicles to ensure drivers' backup parking safety. Help to provide increased safety for passengers, pedestrians and family members who happen to be around the moving vehicle. Provide 8 radar sensors, which is of high sensibility, to ensure your traffic security and individual safety. Comes with buzzing alarm for safe warning. With digital colored LED display (number & light). Self-inspection system, can automatically check abnormal condition itself, avoiding reversing collision. With a drill head, convenient to drill hole. Easy installation and operation. Specification: Material: Plastic Color: Black Voltage: 12V DC Detecting Distance: 0.3 - 2.5m Display Method: Digital display distance, colorful light bar display direction Package Weight: approx. 813g/28.7oz Package list: 1 x Monitor 1 x Main Control Box 8 x Radar Sensors 1 x Hole Saw 1 x Power Cable 4 x Connecting Cable 2 x Decal Note: It is easy to install, but professional installation is highly recommended. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1This is a set of reverse system parts for vehicles to ensure drivers' backup parking safety. 2Help to provide increased safety for passengers, pedestrians and family members who happen to be around the moving vehicle. 3Provide 8 radar sensors, which is of high sensibility, to ensure your traffic security and individual safety. 4With digital colored LED display (number & light). 5Self-inspection system, can automatically check abnormal condition itself, avoiding reversing collision.