Intelligent Technology: This ultrasonic mouse repellent emits different frequencies of ultrasonic waves (25 kHz to 65 kHz) to irritate the nervous system of insects and rats, making them uncomfortable and gradually flee. Intermittent changes in ultrasonic frequency prevent them from developing immunity and adaptability. Large Coverage: Each ultrasonic repellent 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 repeller. Safe and Eco-Friendly Mosquito Repellent: Non-toxic, no chemicals, no radiation, less energy consumption, no noise and 100% safe for humans and pets, you will say goodbye to mouse traps, mosquitoes, mouse pads, pest poison, and insect sprays, etc., No battery needed will save you a lot of money, give you a 100% safe and eco-friendly home. Super Quiet and Effective Mosquito Repellent: The ultrasonic repellent works with low frequency ultrasonic waves, so it can fight pests completely silently and cannot 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 pests away. Easy to use: just plug the repellent into the socket and let it work. The repellent instantly repels pests without killing them. No battery is needed, saving you a lot of replacement. Features of this mosquito repellent -100% safe for use, safe to use for pregnant women and babies. -No noise to drive pests away. No battery required. Just plug into the wall outlet, easy to use. -Repel many kinds of pests mosquito mice rats continuously and powerfully. -Effective for an area up to 800~1200 square feet. A permanent process to repel pests Week 1-2: Latent Period--This period begins to continuously influence and interfere with the pests so as to irritate their hearing system. Week 3: Effective Period--The non-immune and nervous system of the pests has been damaged, which reduces the probability of survival, making it intolerable and causing it to flee from your home. Week 4: Stable Period--The pest's reproductive function is greatly affected, you can say goodbye to the pests easily. Tips: To prevent the parasite does not come back, it is recommended to continue using it. Specifications Weight: 68g*6pcs Power rate: 3W Standard wall plug Effective coverage area: 800-1200 square feet Note: 1. The electronic mouse mosquito repellent should not be placed around carpets, curtains or other cushioning materials. 2. The insect repellent mosquito repellent is safe for pets such as 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.