Ultrasonic Technology - Ultrasonic mouse repellent uses bionic electromagnetic waves to disrupt the hearing and nervous system of pests, making them feel uncomfortable and gradually running away. Working Frequency - The effective working frequency of the ultrasonic car rodent killer is 12kHz-25kHz.The ideal car rodent killer plug-in player keeps mice away from your car. < li>Easy to Use - This ultrasonic mouse is hardwired and powered by your vehicle’s battery. It’s convenient, efficient and environmentally friendly. Protects cables, wires and other rubber parts, you giving your car peace of mind from rodent damage. Warning - This unit is supplied with mounting hardware and wiring to connect to the car’s electrical circuit, it will work when vehicles will turn off and will be stopped when only the motor will work. Safety and Environment - The Ultrasonic Pest Repeller is 100% harmless to the human body. The mouse repellent is made of environmentally friendly materials, non-toxic
