The ultrasonic insect repellent uses the latest chip to enhance the triple effect of ultrasound, sawtooth wave and bionic wave, and produces different ultrasonic frequencies to make mice, bedbugs, spiders, Cockroaches, mice, mosquitoes and flies can’t stand the ultrasonic frequency and flee your room crazily This mosquito repellent is safe for pets and children. It does not produce any chemicals. It can only repel parasites on the body in an environmentally friendly way. You no longer need to install products You don’t have to put up with unpleasant smells, nor do you have to remove parasites from your body Our ultrasonic insecticide can cover a maximum area of 100 square meters. Ensure vertical installation, 7.5-39.5 inches from the ground, and no furniture, electrical appliances and other obstacles Before using insect repellent, it is recommended to install one insect repellent in each room, because ultrasound cannot penetrate walls and solid objects Ultrasonic mosquito killer, just