Estone New Electro Magnetic Ultrasonic Pest Repeller Mice Mosquito Ant Control US Plug This machine will have great effect in 50-80 square meters in the room. It can lustrate house mouse, black beetle, mosquito, fly, cricket, ant, wood ant etc vermin. so we can call it electronic lustrate mouse machine, electronic helminthes machine etc. The ultrasonic that sent out from this machine is far away from hearing range is human being. They will not do harm to human being and pets. Also will not have affect on house machine. It is safety and environment protected. Smell-less and flavorless teeny used energy.( Total power 2w) and with advance photoelectron technology. Color: White