【Ultrasonic Pest Repeller】The ultrasonic insect repellent plug-in will emit ultrasonic waves of different frequencies to stimulate the nervous system of insects and mice, prevent them from developing immunity and adaptability, effectively keep pests away from you and your family. No noise affects your sleep, the ultrasonic sound is inaudible to humans, the mouse repellent is safe for children/pets/family healthy. 【100% Safe and Environmentally Friendly】The ultrasonic pest repellent plug relies entirely on physical means to repel pests. The ultrasonic mosquito repellent is made of high-quality ABS material, odorless, noiseless, and radiation-free. It is an insect repellent that combines advanced technology and humanitarianism. It is cheaper and more durable than expensive pest control companies and other pest control methods. 【Easy to Use Pest Repeller】 Mini size, just plug the spider repellent into a wall outlet 80-120 cm from the ground and make it perpendicular to the ground. The