20-65kHz Ultrasonic Pest Control - Physical Repeller: Change the frequency using ultrasound theory to stimulate the auditory system of mosquitoes and other pests and make them unbearable and uncomfortable. High frequency ultrasonic circuit, not only for mosquitoes, but also against most rodents, such as insects such as cockroaches, ants, spiders and mice.No stimulation for people and animals. No chemicals added - energy saving and environmentally friendly: no radiation, harmless, non-toxic, with wide coverage, ultrasonic waves cannot pass through walls. Scope: theater, restaurants, supermarkets, department stores, hotels, furniture stores, hospitals. We recommend that you install a device for each room. Easy to use - plug our electronic mice into the outlet and let the rest do their thing. And should stand vertically on the ground and be connected to the outlet. These ultrasonic waves are invisible and harmless to people and pets. so that it can be used safely. [Cover a large area and
