Very effective mosquito repellent. Physical way to repel mosquitoes, contains no chemical ingredients, non-toxic and harmless, has no effect on people and pets, can be used with confidence. easy to use ,Just plug in the ultrasonic repellents on the power outlet, the light will turn on to show the mosquito repellent is working. Multi-site use Suitable for 80-120 square meters area, can be used in the bedroom, living room, kitchen, office, garage, etc. Suitable for all kinds of insects Effective against mosquitoes, flies, ants, cockroaches, rats, rodents, spiders, etc., but it is best to wait two weeks for results to appear Cheap and Reassuring The product is non-toxic and environmentally friendly, our repellent is 100% safe and effective, 100% safe for humans and pets.