Features: The Auto Parking sensors Systems with Battery features intelligent motions detection, automatically activating safety lights when vehicles approach (2.4meter green/1.4meter yellow/0.4meter red) and emitting variable frequency alerts for precise distance control. Crafted from weather resistant plastic, this lightweight parking aid combines shock absorption with rustproof durability, offering universally compatibility for sedans to SUVs without complex adjustments. Ideal for multi car households and driver seeking enhanced nighttime parking safety, this device simplifies garage organization and prevents accidental collisions in low light conditions. Perfect for residential driveways, underground parking lots, and dimly lit commercial areas, its 30 second auto shutdown conserves energy while maintaining instantly responsiveness to moving objects. The three stage visual/auditory warning systems (9V powered) delivers real time feedbacks through color coded LED indicators and escalating beeps patterns, ensuring optimal vehicle positioning during reverse maneuvers. Specifications: Component: Plastic Battery: 9V Package Includes: 1Set Garage Safe Light note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.