⚡ 2018 upgrade smart chip: Ultrasonic insect repeller continues to transmit more powerful, non-repetitive ultrasound between 22-65 KHz to attack the pest's hearing and nervous system, so that the pest will never be immune to sound. Suitable for mice, cockroaches, spiders, bedbugs, mosquitoes, insects, rats, rodents, flies, ants, fleas and more. ⚡There are no chemicals, poisons or traps: the ultrasonic repeller works by producing sounds that are inaudible to the human ear, but unbearable for mice and mice. You no longer have to worry about your child putting your hand in a trap or touching any poison. The ultrasonic mouse drive won't hurt you, your dog, cat or most other home pets. ⚡ Easy to use: Just plug the rodent into a power outlet and the electronic repellent will start driving the pest out. Install the insect repeller near the area where the mouse or pest may arrive. It is recommended to crawl 10-30 inches from the ground for reptiles, while flying pests are high. ⚡Large area coverage and long life: Snoogg pest removal is effective for areas up to 800 to 1200 square feet. Although the insect repeller works well, we recommend placing these sonic insect repellents in each room! In addition, a rodent insect repellent can be used for several years, saving you hundreds of dollars for pest control services.