Ultrasonic Repellent This is our advanced version. Using ultrasonic theory, change frequency to stimulate the auditory system of mosquito and other pests, make them unbearable and feel uncomfortable. Large area coverage Each ultrasonic electronic pest repeller is effective for a large area up to 80120㎡. But the ultrasonic does not penetrate walls. We recommend using at least 1 device per room. The ultrasonic pest repeller is ideal for homes, offices, garages, attics, basements, warehouses and greenhouses. Easy to use Simply plug the Ultrasonic Mosquito Repeller into the outlet. Be sure to install it vertically 30~120cm from the floor. The ultrasonic pest control emits low frequency sound waves, which constantly expel pests, mice, mosquitoes, cockroaches, spiders, flies, fleas, ants and rodents. Environmentally and safety friendly The product is non-toxic and eco-friendly, our repeller is 100% safe and effective, the ultrasonic frequency emitted by this machine is inaudible to human
