1 Pack Ultrasonic Pest Repeller - Repells Rodents and Insects - White PRODUCT SIZE: L98xW60xH58MM(L3.86xW2.36xH2.28inches).Net Weight:36g(1.27oz); Color:White,Black. IDEAL TO ERADICATES ALL INSECTS AND RODENTS: Including Moth,Ants,Mosquito,Rat, Mice,Mouse,Bug,Spider,Cockroach,Roaches etc. ELIMINATE PESTS FROM YOUR INDOOR,RESTAURANT,SUPERMARKET,HOTAL,HOSPITAL,HOME : This Ultrasonic Pest Repeller uses state of the art ultrasonic technology to drive pests away. Plugged in to any standard household outlet. It uses low frequency sound waves, inaudible to humans and pets, which drive pests out of your home for good. Mice, rats, spiders, roaches, mosquitoes, ants; None are immune to the sound and completely leave after a few short weeks of use. NO HARMFUL CHEMICALS OR POISONS : Forget the harmful chemicals, poisons, and traps typically used in households and by pest control technicians. This Pest Control Repeller is 100% safe and effective. It naturally drives pests out without killing them. No need to clean up dead insects and rodents. This Ultrasonic Pest Repeller creates an uncomfortable environment for pests so they simply leave. EASY TO USE : Simply plug in the unit and let the it do the rest. Use 1 unit per average-sized room with a pest problem. Additional units will be required in larger areas. Areas such as attics, basements, garages and large storage areas may require more than one unit. Plug Type: US Plug. This machine will have great effect in 50-80 square meters in the room.