A>Features a–4 sensor system, advanced chipset for enhanced coverage and detection (0.3-2.5m); b–With digital colored LED display (number & light); c–Help to provide increased safety for passengers, pedestrians and family members who happen to be around the moving vehicle; d–Detect small children and low walls as well; e–Small, exquisite and beautiful appearance; B> Performance Specification a–Automatically works when reversing; b–Show distanc e by digital display; c–Detect distanc e:0.3~2.5M; d–Embedded detector sensors (which require installation into your rear bumper); e–High-tech processing, High-quality detector sensor, Beautiful line type figure; f–Easy installation; g–4-sensor, 6-sensor, 8-sensor, 3-sensor, even 2-sensor model is optional for you C>Technical Specification a–Rated voltage:12V b–Operating voltage: 10.5 ~ 16V DC c–Rated current: 100mA – 300mA d–Detection distanc e: 0.3 ~ 2.5m e–Ultrasonic frequency: 40KHz f–Working temperature of control box: -35 – 70℃ celcius degree g–LED display size: 100* 21*27mm h–Display weight: 88g i–Main control box size: 90 * 60 * 23mm Main control box weight: 60g