Detailed Product Description Special Features: When the reverse gear is engaged, the system will work automatically Phonic reminder: BI BI BI or speaker voice warning Fine definition VFD digital display, Four distances are shown: rear left, rear right, front left, and front right Intelligent design with ultrasonic sensor self-test function Adjustable warning sound volume and mute setting function available Flash sensor to send out blue or red color according to the different distance detected 4 ultrasonic sensors, detect accurately Different color choices for sensors to match with any colors of car Our all kinds of sensor colors and styles are available Built-in sensor installation, just as original fitting Specifications: 1. Kind of Display: VFD 2. Operating voltage: 10.8-15V 3. Supply voltage: plus 12V more or less than 12V (DC) 4. Power: 3W(max) 5. Ambient temperature: -40癈~ +80癈 6. Detective range: 0.3 to 1.5m 7. Length of the detective cable: 2.5m Inner packing: Box dimensions: 342 x 225 x 67mm /285 x 205 x 70mm N.W.: 0.45kg G.W.: 0.80kg Outer packing: Carton dimensions: 435 x 300 x 380mm G.W.: 10.5kg we will design packing according to your demands.