High Quality Ultrasonic Pest Repeller: If considering a non-chemical approach to reject pests, it is recommended that ultrasonic repellents be devices that emit constant noise at too high a frequency so that humans can hear it. These sound waves are designed to distract, bore and deter common household pests such as cockroaches, spiders, mosquitoes, ants and rodents. Ultrasonic Action And Friendliness Ultrasonic insect repellent uses ultrasonic waves to stimulate the pest brain and auditory nerve to drive pests away from your home. Say goodbye to harmful poisons, dangerous chemicals and traps, work without disturbing people or pets and be respectful of your family and pets Wide Area Coverage The mouse repellent can be applied to induce mice, rats, cockroaches, spiders, insects, mosquitoes, bedbugs and ants. It is recommended to install this device at a distance of 8-27 inches from the floor and apply it in houses, offices, apartments, supermarkets, warehouses, hotels or any other places Environmental and Energy Saving The pest repellent has the following features: no trap, no noise, no radiation and no special smell. Low power consumption, energy saving and environmental protection. Based on ultrasonic pest control technology, this device offers an easy and quiet way to deter pests. You will discover a significant decrease in pest activity in 3-4 weeks, without the need to use sprays or traps Night Light Function: the process is equipped with a night light. The night light can induce the pests to leave the colony. At night, when the night light is on, the machine starts working and the soft light allows you and your family to sleep more soundly. Silent ultrasound does not affect work and sleep