Description: Ultrasonic is inaudible to humans and pets, an environmentally friendly alternative to dangerous poisons and sprayers, no unpleasant odor and bodies. This ultrasonic pest control works quietly, so you can set it up in your children's room, bedroom or guest room with peace of mind. The ultrasonic waves that this repellent sends are far beyond the hearing range of humans. Enjoy a peaceful and pest-free cramped sleep without worrying about noise, keep your family sleeping well from noise. To install our ultrasonic pest repellent, simply plug it into a power outlet. The pest repellent device will immediately eject harmful pests without killing them. No battery will be needed, which will save you a lot . Specifications:Item Name: Ultrasonic Pest RepellentRated Power: 5W Power Voltage: AC90-220 V Power Frequency: 50-60HZ External Dimension: 90*56*50mm Color: White Plug: AU Plug, EU Plug, US Plug, UK Plug Quantity: 1 PcNote: -There can be a small size error for manual measurement.-Color deviation may vary due to different monitor settings, please understand.