General description The Ultrasonic Mosquito Repellent Plug is an effective pest control device designed to repel a variety of pests including rats, spiders, mosquitoes, mice, and cockroaches. Utilizing intelligent frequency conversion ultrasonic technology, it emits ultrasonic waves ranging from 20 to 55 kHz, which stimulate the hearing and nervous systems of pests, effectively keeping them away from your home. Technical specifications Ultrasonic frequency range: 20 to 55 kHz Effective coverage area: 80-120 square meters Recommended installation height: 25-75 cm above the ground Installation Simply plug in the device to activate it. Ensure the device is installed 25-75 cm above the ground. Keep a clear space of at least one meter around the device to avoid obstacles. For optimal effectiveness, install multiple devices in areas with serious pest infestations. Usage The device is safe for humans and pets, as the ultrasonic frequency is inaudible to the human ear. It is recommended to