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. Long Range: Each ultrasonic repeller can cover up to 120 square meters. It is recommended to install this hammer vertically at a distance of 20-80cm 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 find yourself Say goodbye to mouse traps, mosquito traps, mouse pads, pest control poison and bug sprays, etc. No battery required saves you lots of money and gives you a 100% safe and eco-friendly home. Super Quiet and Effective Mosquito Repellent: The ultrasonic repellent works with