YIXUAN TRAFFIC LIGHT PARKING AID: When the car is approximately 2.5 meters from the parking unit, the green light turns on and a slow frequency alarm sounds. When the car is approximately 1.5 meters from the parking unit, the yellow light turns on and a medium frequency alarm sounds. When the car is approximately 0.5 meters from the parking unit, the red light turns on and a fast frequency alarm sounds. AID COMPONENTS: It consists of two parts: sensor and traffic light indicator. The height can be adjusted arbitrarily according to the height of the vehicle to assist with perfect parking, and it is suitable for all vehicles. EASY TO INSTALL: Can be wall-mounted with either double-sided foam tape or screws. Keep it in the perfect position depending on the height of the vehicle. EASY TO USE: Batteries are included for your convenience so that the stop sign can be set up right out of the box. The flashing LED Garage Stop Sign is easy to install and works well in tight spaces. FLASHING LED STOP SIGN: Helps with 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 is difficult to see. Product Name: Traffic Light Parking Aid Type: Locator Material: ABS Packing Specification: 65*70*190mm Color: Grey Weight: 183g Scope of Application: Parking lot, garage Description: When the car is approximately 2.5 meters from the parking unit, the green light turns on and a slow frequency alarm sounds. When the car is approximately 1.5 meters from the parking unit, the yellow light turns on and a medium frequency alarm sounds. When the car is approximately 0.5 meters from the parking unit, the red light turns on and a fast frequency alarm sounds.