Smart Technology: This ultrasonic mouse repeller emits different frequencies of ultrasonic waves (25kHz-65kHz) to irritate the nervous system of insects and rats, making them feel uncomfortable and gradually flee. Intermittent changes in ultrasonic frequency prevent them from developing immunity and adaptability. Large Coverage: Each ultrasonic repeller can cover up to 120 square meters. It is recommended to install this hammer vertically at a distance of 20 to 80 cm from the ground. For best results, equip each room with a pest repellent. Safe and Eco-Friendly Mosquito Repellent Control: Non-toxic, no chemicals, no radiation, less power consumption, no noise and 100% safe for humans and pets, you will say goodbye to mouse traps, mosquito traps, mouse pads, pest control poison, and insect sprays etc, No batteries needed will save you a lot of money, you gives a 100% safe and eco-friendly home. Super Quiet and Effective Mosquito Repeller: The ultrasonic repellent works with low frequency ultrasonic waves, so it allows you to control pests completely silently and does not can't disturb you and your pets. Please note that it requires a process. Depending on the environment, the response time varies, usually 2-6 weeks, we are sincerely here to help you keep the pests away. Easy to use: just plug the repeller into the outlet and let it work. The repellent instantly repels pests without killing them. No batteries are needed, saving you a lot of replacement. Features of this mosquito repellent100% safe for mosquitoes. 's use, safe to use for pregnant woman and baby.No noise for driving pests. No batteries required. Just plug into the wall outlet, easy to use.Repels many types of pests mosquito mice rats continuously and powerfully.Effective for an area up to to 800~1200 square feet. A permanent process to repel pests Week 1-2: Lag Period--This period begins to influence and continuously interfere with the parasites so as to irritate their hearing system. Weeks 3: Effective Period--The parasites' non-immune and nervous systems have been damaged, reducing the chances of survival, the making it intolerable and causing your home to leak. 4 Weeks: Stable Period--The parasite's reproductive function is greatly affected, you can say goodbye to the parasites easily. Tips : To prevent the parasite from returning, it is recommended that you continue to use it. Specifications Weight: 68g*6pcs Power Rate: 3W Standard wall plug-in Effective coverage area: 800-1200 square feet Note: 1. The electronic mouse repellent mosquito repellent should not be placed around carpets, curtains or other dampening materials. 2. The insect repellent mosquito repellent is safe for pets like dogs, cats, birds, fish and rabbits. However, it is not recommended for pets such as hamsters gerbils guinea pigs tarantulas chinchillas and other rodent type pets.