Are you still suffering from a pest or mouse infestation, but without a solution Our products won't let you down！ Benefits - Safe and Human - Safe for Humans and Pets - Don't Kill, Repel Pests - Non-Toxic and Environmentally Friendly - No radiation, no smell and no noise Specification: - Material: ABS - Rated power: 3W - Power supply voltage: AC 90-250V/50HZ-60HZ - Ultrasonic frequency: 22kHz - 65kHz - Effective coverage: 800~1200 sq.ft. Notice: 1. If you have a hamster at home, stay away or don't use this repellent. 2. It should be installed at a distance of 31 to 47 inches from the ground and be vertical to the ground. 3. The carpet, the curtain, the refrigerator and any other furniture that can deter or fix a frequency should be avoided. 4. It is normal for the parasites to increase at the beginning of the days of use, because it means that they move away from their living place after being attacked by the ultrasonic waves. 5. This ultrasonic repeller works remarkably well after