AHD Dual Core CPU Car Video Parking Sensor Reverse Backup Radar Aistance, Auto Parking Monitor Digital Display and Step-up Alarm Features: 1) Using Double CPU digital fill image sensor designed for automotive Rear View development design, using digital fill and software technology, clear image and distance on the monitor.2) -30 to +60 temperature range of application, The factory after the high preure water immersion test and 12 hours on the electrical aging test, multilayer waterproof design, truly high preure washing and immersion .3) The Sensors Installed in the Rear bumper of the car and included a Drill . Detect small objects and bars.4) 6m Video cable connected with any TFT-LCD screen , power cable connection car Reversing power supply, Reversing, the monitoring Parking system automatically start working, you can clearly see the car Rear the distance and Image.5) Tips : this link not included TFT Monitor and Rear View Camera6) Support AHD signal7) Adjustable Sound Specifications: 1. Rate Voltage: DC 12V2. Operating Voltage Range: 9~16V3. Rate Current: 20~200mA4. Detecting distance: 0.3 - 2m5. Ultrasonic Frequency: 40KHz6. Step-up buzzer alarm NOTE:This link not included car monitor and rear view camera.**If only connect parking sensor with DVD player or monitor, you only hear warning BIBI sound. So if you don't have rearview camera , we highly suggest you buy parking sensor and rear view camera from us . Package included: Control box x 1Power cable x 1Connect cable x 1Speaker x 1Parking Sensors x 43M Stable Glue x 222mm Drill (For Sensors hole) x 1Manual and Box x 1