Description: OOTDTY This machine should be installed at a distance of 80-120 centimeters from the floor. And it should be vertical to the floor and connect to the power outlet Avoid the installation point from carpet, curtain, etc. mounting of sound material. Otherwise, the sound pressure drop can harm the helminthes effect. It is normal for the mouse and vermin to increase at the beginning of the use of days. Because they will get their way out of their place of residence after an attack of ultrasound. This unit can be connected directly to an AC220V (or 110v) power outlet. (Power range: Ac90v-250v.Frequency:50HZ-60HZnote: moisture-proof, waterproofDo not clean the device with a strong cloth, water or damp cloth. Use a dry and wash cloth to clean the machineDo not drop the machine and do not hit it hard. Using ambient temperature: 0-40°C.To increase the effect, use several sets of machines in the warehouse or pile of goods several rooms. Feature: No-foxic, environmentally friendly Save and harmless 22-65KHz repulsion Ultrasonic frequency 80-120sqm protection Frequency ranges: 22-65KHz Power source: AC90V-250V 50-60Hz Power: 5-6W Plug: EU plug. Size: 8.8x5.6x5cm (Approx.) Color: As the picture. Quantity: 1PcNote: Please make sure the plug matches your country's standard. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 X Pest Repeller