A generation car parking system, more stable and quicker chip with sensitive response. Features: 4 sensors to detect the real distance between the vehicle and the object. Sound Alert: The closer the obstacles, the louder and faster the sound alert. Provides increased safety for passengers and family members who happen to be around the moving vehicle. Upgraded chip, more stable, sensitive and quicker. Sockets compartment with holes, tightly fixing the connecting cables. Specifications: Color: Black Rated Voltage: 12V DC Operating Voltage Range: DC 10.5V-16V Rated Current: 100mA-300mA Detecting Distance: 0.3 m-2.0m Ultrasonic Frequency: 40KHz Control Module Working Temperature: -30-80 Main Control Box Size: 97 * 63 * 20mm Package Size: 22 * 20 * 7cm / 8.7 * 7.9 * 2.8in Package Weight: 357g / 12.6oz Package List: 1 * Main Control Box 1 * Sound Alert Indicator 4 * Parking Sensors 1 * Power Cable 1 * Hole Saw 2 * Sticker 1 * Manual