Intelligent 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 human and pets, you will say goodbye to mouse traps, mosquito traps, mouse pads, pest poison, and insect sprays etc, No battery needed will save you a lot of money, give you a 100 home % safe and eco-friendly. Super Quiet and Effective Mosquito Repellent: The ultrasonic repeller works with low frequency ultrasonic waves, so it can control pests completely silently and cannot disturb you and your pets. pets. Please note that it requires a process. Depending on the environment, 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 leave it function. The repellent instantly repels pests without killing them. No batteries are needed, saving you a lot of replacement. 0