[Product Principle] The upgraded ultrasonic rat repeller uses modern microelectronics technology to produce intermittently alternating automatically changing ultrasonic waves and continuously high performance magnetic seismic waves. It acts on the auditory and nervous systems of rats, causing them to feel discomfort and flee the area covered by the ultrasonic waves [Safety And Environmental Protection]The housing of our mice repellent ultrasonic is made of ABS and is resistant to high temperatures. Humane rodent repellent products,Say goodbye to mouse traps, rodent pesticides, and insecticides, safer for humans and pets, no chemicals, no radiation, no batteries, and less power consumption. Giving you a safe and environmentally friendly home. [Get Better Results] Normally, one product is used for one room. Better results will be obtained if more than one product is installed. Ultrasound waves travel like light waves and do not penetrate solid doors, walls, or furniture, ensuring that the product is not obscured by furniture, appliances, etc . when in use. Ultrasound disturbance to rodents is cyclical, not immediate, and rodents cease activity after approximately 7-25 days. [Easy To Operate] Just plug the product into the socket, and when the function indicator on the panel lights up, it means the product is working properly. The three different colors lights represent three different working modes. You can select the desired mode by clicking the button on the right side of the product. [Wide Range Of Coverage] The effective area of our products is about 200 square meters. You can use our ultrasonic pest repellent in any indoor space, such as your house, garage, office, company, restaurant, warehouse, etc.