Feature: 1. Promote Safe Driving: Equipped with LCD display and 4 sensors, provides real time and accurate distance information, effectively improve the safety of the driving process, so that the driver has a more worry free driving experience. 2. Easy Installation: Sensors are easy to install with drilling method, long sensor and display cables for convenient use. Simple interface on LCD display for easy use even for beginners. 3. Stable Performance: Made of ABS material with excellent insulation, heat resistance, and impact resistance. Works within range of car voltage for stable performance and long lifespan. 4. Humanized Design: Features colorful warning lights and three level alert sound, adjusting colors and rhythm based on distance for intuitive vehicle status awareness, enhancing driving safety. 5. Wide Applications: Suitable for individual and commercial vehicles, helps solve parking challenges in tight spaces like parking lots, congested roads, etc. A must have for drivers during reverse parking maneuvers. Specification: Item Type: Car Reverse Radar Sensor System Material: ABS Working Voltage: DC 9V-15V Rated Voltage: DC 12V Sensor Number: 4 Sensor Diameter: 22mm Sensor Direction: X, Y, 60 degrees Sensor Installation: Drilling Detection Range: 0.3 Meter-2.0Meter Alert Sound: Three Level Heartbeat Sound Buzzer Volume: 65dB Sound Frequency: 1.6-2.0m/0.5Hz (slow), 1.1-1.5m/1Hz (slow), 0.6-1.0m/3Hz (rapid), 0-0.4m (continuous) Display: Two Digit Display Distance, Colorful Flashing Warning LightsDisplay Cable Length: Approx. 5m/16.4ft Sensor Cable Length: Approx. 2.5m/8.2ft. Package List: 1 x Display 1 x Controller 1 x Power Cord 2 x Double Sided Tape 1 x Drill Bit 4 x Radar Sensor 1 x User Manual