[Ultrasonic Mouse Repellent] This ultrasonic insect repellent uses smart microelectronic chips with specially designed ultrasonic waves (12-24KHz) and LED flash. Effectively stimulates and destroys the brain and auditory system rats and other pests in the control area, making them feel scared and uncomfortable. Then quickly flees the scene.[The function of LED flashlight flashlight] In the dark, mice and mink are afraid of glare and lightning. The ultrasonic mouse repeller has a dazzling LED bulb that consists of red light and White. It can prevent unwanted animals from entering cars and garages.[Not Harmful to Humans The device emits high frequency tones of different levels which cannot be heard by humans. The automotive ultrasonic protection agent uses heat-resistant materials heat, non-toxic and safe, noiseless, non-toxic and safe, friendly to humans, pets and non-rodents.[Pest Control] Your cable has no more holes Using this ultrasonic mink insect repellent can protect your car from rodent damage. You can safely leave it outside.[Easy to Install] With installation and wiring hardware connected to the car circuit, it will work when the vehicle is off and stop when the engine is running. With this rodent suppressant, you don't have to worry about rats coming back to bite your car's starter wiring. No harm to your car.