Safety and Ease of UseThe mouse repellent uses ultrasonic technology, it is non-toxic, chemical-free, odorless and completely safe for people and pets. High Sensitivity and Flashing LightOur Ultrasonic Mouse Repellents incorporate different automatic frequency and sensitive circulation to drive away unwanted pests. Effectively detect different animals, such as rats, mice, moles, voles, squirrels, chipmunks, etc. Constant UseContinue to use for 1 - 2 weeks. Early cavities can become abnormally active, but later they can disrupt the nerves and avoid getting close to areas where rodent repellents are placed. This can effectively protect your kitchen, warehouse, rooms and plants in a long term. Working PrincipleThe ultrasonic mouse repellent features advanced frequency conversion technology, the Continuous frequency of ultrasound is capable of affecting the nervous hearing systems of rodents. Which is extremely irritating to rodents and pests, causing them to rush to find a peaceful area, and will be forced to leave your home. Wide CoverageSuit for home or any interior area. Save your money for rodent control, and prevent your property from mouse damage, repelling squirrels, mice, rats and bats from your home. The ultrasonic pest repeller is effective in an indoor area up to 200.