Features: 1) Display type: long bar LCD display 2) Sensor number: 4 3) Sensor color: black, red, white, silver, green, gold, orange, blue 4) Detector type: drilling or stick-on 5) 3-digital display the distance 6) Activation: a) Rear sensor is activated when reverse gear is engaged b) Voice speak out the obstacle distance which will be shown on the display by signal c) On backing the car, the rear sensors detect obstacles behind the car automatically d) Stage-by-stage sound alarm to avoid colliding; the voice could be adjusted, with mute setting 7) Versatile detection range 8) Sensor types for optional Specifications: 1) Working voltage: DC12V±2V 2) Input: 5W (max) 3) Beeper: 80 - 95dB 4) Working temperature: -40 ~ +80oC 5) Frequency: 40kHz 6) Best detection distance: 0.3 - 1.5m Outer packing: 10pcs/carton Carton dimensions: 34 x 21.5 x 39.5cm Price Condition FOB Guangzhou Origin China Packaging 10pcs/carton Package Size 34 x 21.5 x 39.5 Centimeters Delivery lead time 7-45 days against payment,it depends on quantities. Minimum order 500 sets Supply ability 50000 set/month