Ultrasonic Repellent 4 Pack Plug-in Mouse Repellent Electric Ultrasonic Mosquito Repellent for Mice and Rats Portable Indoor Mosquito Repellent for Mice, Rodents, Mosquitoes, Cockroaches, Spiders

【Ultrasonic Repellent】The ultrasonic pest repeller emits low-frequency sound waves (20-55 kHz). The frequencies of the ultrasonic and electromagnetic waves are converted and coexist, which can effectively affect the auditory neurological system, driving pests away quickly and efficiently.【Wide Coverage】Simply plug the ultrasonic pest exterminator into a standard power outlet, and the LED indicator will light up, indicating it will begin working. It is easy to use and convenient to carry. The manufacturer suggests using one unit for approximately 80-120 square meters.【Safe and Environmentally Friendly】The mosquito repellent is safe, odorless, chemical-free, non-toxic, and non-radiative. Thanks to advanced ultrasound and sawtooth wave control, you can kill insects, mice, cockroaches, mosquitoes, ants, and spiders. 【Easy-to-Use Pest Repellent】Mini size design; simply plug the electronic rat repellent control into any outlet. Be sure to install it vertically, 20-80 cm from the ground. The blue indicator light will illuminate, meaning it can operate automatically without any complicated installation process. You can see the pests disappear in 3-4 weeks.