Specifications: Operating Voltage Rating: DC12V Max Power: Pmax80dB Ultrasonic Frequency: 40KHz Features: This Parking Sensor helps to prevent dangerouscostly collisions This Radar Sensor can increase safety for passengers, pedestrians,family members who happen to be around the moving vehicleClassic Parking Sensor features sensitive adjustability, high anti-jamming capability Rear Car Sensor will make your life safereasierInstallation is simplecan be directly stuck in your car 3.5 inch TFT LCD display with 320RGB x 240 ResolutionDual CPU, 4 sensors system,Obstacle orientation indication Package Included: 4 x Sensors 1 x Control Case 1 x LED Display 1 x Webcam 1 x Power Cable 3 x Data Cables 2 x Hole Saws 1 x Horn