Main Features: - Prevent from corner coliding and impacting with special design for easy operating - The vocal notification of " bi-bi" and digital distance display show the characteristics, especially night - The sever Colors display for orientation of obstacles - The provoke design for voice and digital make it more harmonious and attractive - The appearance of sensor and body of vehical is a perfect match, just like original binding accessories - The humanity design and human voice notification for distance of obstacles (vocal) Operating Voltage: DC 12V + / - 2V Detective Range: 0.3 ~ 0.8m (front) ; 0.3 ~ 2.0m (back) Operating Temperature: -20℃ ~ 70℃ Operating Electric Current: 200mA + / - 50mA Product Size: 90 x 60 x 20mm / 3.54 x 2.36 x 0.79inch Weight: - Net Weight: 51g / 1.80oz / 0.11lb - Gross Weight: 448g / 15.80oz / 0.99lb Sensor Color: Black, Red, Gray, Silver, White(optional)Package Weight: 340 G / 11.99 Ounces Package Dimensions (L*W*H): 260*190*64 MM / 10.24*7.48*2.52 Inches Package Include: 1 x Main Control Box 4 x Parking Sensors with 2.8M Line 1 x Hole Saw 1 x Power Cable 2 x Double Side Sticker 1 x User Manual