Bearsu - Ultrasonic Repellent for Rodents Insects etc, [2 Pack], Ultrasonic Plug Anti Fly, Ant, Cockroach, Spiders, Mice, No smell, No Danger

Physical repellent: Using ultrasound theory, change the frequency to stimulate the auditory system of mosquitoes and other pests, making them unbearable and uncomfortable. No stimulation for humans and animals Automatic frequency modulation: the frequency of ultrasonic waves is between 25 kHz and 55 kHz, automatic transformation. Ultrasound disrupts the endocrine system and the physiological function of pests, insects, rodents, so pests are scared away. (CAUTION: A few days after using the pest control pest may move more and more, this is a normal phenomenon, because pests influence ultrasound, they escape from residential areas.) 100% Safety and Environmental Protection: This pest control killer is environmentally friendly, safe, non-toxic, harmless and silent, and does not harm children, pets, etc. at all, at the same time it does not ’not interfere with household appliances. This pest killer does not kill the pests, just scare them away, so it is good to avoid poison from