ZEROPEST Ultrasonic Pest Repeller, Indoor Ultrasonic Insect Repellers for Mice, Electronic Plug-in Sonic Repellent Pest Control for Roach, Rodent, Mouse, Bugs, Mosquito, Mice, Spider - 6 Packs

Effective And Environmentally Friendly Pest Control Solutions Just plug the ultrasonic pest repeller ?into the power socket, and the high-frequency ultrasonic wave will not cause harm to human body and pets, but will only attack and expel pests. We recommend installing one in each room, but for areas with severe pest damage, two or more can be installed.It usually takes 3-4 weeks for a different result depending on the amount of infestation. Color: blue Material: ABS Power: 5-6W Package: 6 PCS Plug Type: US Plug Voltage: AC 90V-250V Ultrasonic repellent frequency: 22-65KHz Working Range: Within 50-120 Square Meters