【Latest Dual Chip Technology for 2022】: This Nitoer ultrasonic for mice adopts dual ultrasonic and electromagnetic chips to simultaneously disorient the parasite’s hearing and nervous system and repel them quickly and powerfully. It protects from most kinds of flying and crawling pests, such as rats, mosquitoes, spiders, bed bugs, cockroaches, fleas, ants, fruit flies, etc. 【Wide coverage area, easy to use】 Ultrasonic pest control is for one Effective area of 100 m square. Just plug in the bug repellent and turn on the power. Use it in large areas, use this insect repellent in your home, warehouse, office, garden, hotel, restaurant, bar, etc., and forget about pests. 【Easy to Use】: Sticking Simply place the parasite’s ultrasonic mosquito repellent on the exit 30-150cm above the floor and make sure there are no obstacles such as curtains or cabinets in front of the mosquito repellent. Most customers can see results within 3-4 weeks! Then we can say goodbye to parasites and mice. [100%