car reverse system 1 Color LCD Display. 2 CE certificated. 1.Color LCD Display. 2.Buzzer Type. 3.Dual CPU, 4 sensors system. 4.Obstacle orientation indication. 5.Operating voltage rating: DC12V.6.Max power: Pmax<5W.7.Operating temperature: -40~80.8.Display Distance: 0.40m~2.00m.9.Alarm Distance: 0.10m~1.54m. 10.Alarm voice: >80dB.11.Ultrasonic frequency: 40KHz..product name: car reverse system ...