360 Degree Rotation: Garage parking guide assist system features two adjustable beams that guide you to the correct parking position every time. The double light design accommodates two cars, making it easy to narrow garages and adding convenience to your daily life. Note: Please note that this product has a sensing function; the will not appear unless a vehicle approaches. Easy to Use: Simply the parking aid on your garage ceiling at an ideal location where you can see the beams from your car window. Drive into the garage and remember where your car, then that when parking in future. Application: Automatically detect movement up to away, lighting up as a vehicle approaches and turning off after 30s of inactivity. Material: Made from ABS , this garage assistant is sturdy and resistant to deformation. Specification: Working power supply: input 110-220v, output 5v or 3 AAA batteries (not included) Working mode: car body sensing Work type: When the car comes, the light will turn on, and will turn off after 30s if it does not move. Scope of application Garage, underground parking lot Size Chart: 10cmx10cmx3cm/3.94inchx3.94inchx1.18inch Package Includes: 1 Garage Parking Assist