Intelligent sound waves: Our insect repellent will bring high power and effectiveness. This outdoor insect repellent is based on physical principles and uses electronic simulation technology to repel mosquitoes and insects. The mosquito repellent can emit various sound waves to stimulate the mosquito's brain so that the mosquito can tolerate these sound waves for a long time. They will stay away from these areas.Safe for humans and pets: Indoor ultrasonic insect repellent is non-toxic, odorless and chemical-free, and can protect the area around you. This outdoor insect repellent with special safe ultrasonic waves will not affect normal life. The mouse repellent is made of ABS safe flame retardant material, which is environmentally friendly and pollution-free and can be used for a long time.Easy to use: You will set up the internal insect repellent in seconds, just open the insect repellent pen and hang it on the right place on your body or other equipment. Just one-click start, and the fly repellent will automatically protect your area. Say goodbye to fleas, cockroaches, mosquitoes, rats, spiders, ants and other insects.Energy saving: The mouse repellent is charged for one hour and takes care of you all day, equipped with USB power adapter, computer, mobile power supply, the electrical radiation level of the mouse repellent is much lower than the industry standard, safe to use, and can work for a long time.