Do you have rodents in your home? Don’t want to use poison, chemicals or dangerous traps? Why not choose us? Rodent Repellent, Unlike a mouse trap, or chemicals , the ultrasonic device is effective, eco-friendly and without any risk. Feature: Non-toxic environment-friendly< /p> 1, No chemicals and sprays, won’t hurt your pets. 2, No noise, won’t annoy you. 3, None radiation, safety. 4, Easy to use, just plug it into the socket. Parameter: Ultrasonic frequency: 22~65KHZ Input voltage: AC90V~250V / 50Hz~60Hz Power: 5-6W Effective coverage area: About 60-120 square meters< /p> Note: 1) The mechine should be installed 80~120cm from the ground, and should be vertical to the ground and connected to the outlet (better effect). < p>2) One unit for each pi This is recommended for the best result, because the solid like wall, furniture and so on, will weaken the effect of ultrasonic wave. 3) Usually it can take 1~3 weeks to notice results. The number of pests and insects may increase in