TRAFFIC LIGHT PARKING AID: When the car is about 2.5 meters away from the parking device, the green light will turn on, and a slow frequency alarm will sound. When the car is about 1.5 meters away from the parking device, the yellow light will turn on, and a medium frequency alarm will sound. When the car is about 0.5 meters away from the parking device, the red light is on, and a rapid frequency alarm sound is issued. AUXILIARY COMPONENTS: It is composed of two parts: sensor and traffic light indicator. The height can be adjusted arbitrarily according to the height of the vehicle to help perfect parking, and it is suitable for any vehicle. EASY TO INSTALL: Wall mountable using either double-sided foam tape or screws. According to the height of the vehicle, keep it in perfect position. EASY TO USE: Batteries are included for your convenience so that the stop sign can be set up right out of the box. Flashing LED Garage Stop Sign is easy to install and works well in tight spaces. FLASHING LED STOP SIGN: Assist Parking in the Garage to prevent dents and scratches on your vehicle. The LED lights in the stop sign flash a warning when a vehicle gets too close, allowing the driver to park the car at a safe distance, even on nights when it's hard to see. Product name: Traffic light parking aid Type: Locator Material: ABS Packaging specification: 65*70*190mm color: gray Weight: 183g Scope of application: parking lot, garage describe: When the car is about 2.5 meters away from the parking device, the green light will turn on, and a slow frequency alarm will sound. When the car is about 1.5 meters away from the parking device, the yellow light will turn on, and a medium frequency alarm will sound. When the car is about 0.5 meters away from the parking device, the red light is on, and a rapid frequency alarm sound is issued.