Eliminates All Kinds Of Rodents And Insects - Protects Your Home Against Vermin Without The Use Of Harmful Chemicals Or Sprays. Works For Mice, Spiders, Cockroaches, Mosquitoes, Ants, Rats, Etc. Safe And Eco-Friendly - No Harmful Chemicals Or Poisons. The Ultrasonic Frequency Cannot Be Heard By Human Beings. The Device Will Cause No Harm To Humans And Animals. Ultrasonic - Uses Safe And Effective Technology To Extremely Irritate Rodents And Insects, Causing Them To Escape Your Home. Typical Results May Take 2-4 Weeks Depending On The Amount Of Infestation. Easy To Use - Plugs Into Any Standard Outlet, The Ultrasonic Vermin Emitter Emits Frequency Sound Waves, Which Hunts Vermin Out Of Your Home For Good. Wide Covered Area - The Ultrasonic Vermin Repeller Effectively Covers An Area Up To 1201 Square Feet. Please Note That Ultrasonic Waves Cannot Penetrate Walls. You Will Therefore Need One Unit For Each Room That Has A Rodent Or Insect Problem.)