For sensors, you can paint them to create the color you want, and the sensors will remain unaffected and function properly. Highlights: The LED display emits a beeping sound when alarming. Specifications: 1. Rated Voltage: 12V 2. Operating Voltage Range: 9–16V 3. Rated Current: 20–200mA 4. Detecting Distance: 0–2.5m 5. Ultra Frequency: 40KHz 6. Working Temperature: -30°C to 80°C 7. Display Working Temperature: -20°C to 60°C Features: 1. Size of LED Display: 9.9 x 2 x 2.6 cm 2. Length of LED Display Cable: 5m 3. Size of Main Control Box: 8.9 x 6 x 2.2cm 4. Weight of Whole Kit: 388g 5. Includes 2 or 4 Sensors 6. Advanced Chipset for Enhanced Coverage and Detection 7. LED Display with Digital Readout and 3-Color Light Bar 8. Detects Small Objects and Obstacles 9. Helps Prevent Dangerous and Costly Collisions 10. Provides Increased Safety for Passengers, Pedestrians, and Family Members Near the Moving Vehicle Package: 1 x Main Control Box 1 x LED Display 2 or 4 x Parking Sensors with 2.5m Cable 1 x Power Cable 1 x Hole Saw 2 x Double-Sided Adhesive Pad 1 x User Manual