Ultrasonic Repellent, Improved Electronic Outdoor and Indoor Repeller for Fleas, Insects, Mosquitoes, Spiders, Ants, Rats, Cockroaches, Insects, Non-Toxic. SpecificationItem Type: Pest Repeller;Material: ABS;Color: Black;Plug: US/EU/UK Plug (Optional).Weight: Approx.93g/3.3oz;Power supply: AC110-230V;Rated Power: 5~ 8W;Acoustic Frequency: 22KHZ-85KHZ;Acoustic Waves Varieties: Ultrasonic, electromagnetic waves;Speaker Type: 2 buzzers;Coverage Area: 150; Product Features: Full frequency band dynamic cross frequency conversion technology. Gets Rid of Pests With continuous use, this new Ultrasonic Pest Repeller will greatly reduce pest activity in two weeks and finally eliminate all pests in 3-4 weeks. It won’t kill pests, but rather drives them away, making it good for your home environment. Easy InstallationJust plug into the socket, press once to make a beep, and the green light flashes twice. The system self-checks, and the green breath light is on with a beep, and the system