Product Description: This 6 Pack Ultrasonic Mouse Repeller Electronic Mouse Rat Repeller 2018 applies a powerful ultrasonic wave to repel insects, mice, cockroaches, rodents, spiders, ants and rats, while remaining completely safe for humans and pets.Product Features: Works by continuously transmitting a powerful range of ultrasonic sound waves that ward off pests, while remaining completely inaudible to humans and pets. pets. Non-toxic and harmless to humans and pets, an alternative to toxic chemicals and dangerous traps. Protects an area of up to 80-120 square meters per unit. Low power consumption, suitable for long time operation. Does not interfere with the operation of radio, television or other electronic equipment. Specifications: Color: White+Black Material: ABS Plug Type: US\/EU\/AU\/UK PlugPower Supply: AC 90V-250V, 50-60HzPower: 5-6WUltrasonic Frequency: 22-65KHzEffective Range: 80-120 Square MetersWorking Temperature: 0-40CProduct Size: 90 * 55 * 50mm / 3.54 * 2.16 * 1.97inProduct Weight (1pc): 47g / 1.66ozPackage Size: 13 * 10 * 10cmPackage Weight: 242gPackage List packing:6*Ultrasonic Pest RepellerNote:1. This machine should be installed 80-120 cm from the ground. And upright on the ground and plugged into the power outlet.2. The installation point should be avoided to be behind the curtain, refrigerator and any other furniture that deters or attaches the frequency.3. It is normal for mouse and vermin to increase at the beginning of the days of use. Because they move away from their place of life after the ultrasound attack.4. Do not clean the machine with strong impregnant, water or wet cloth. Use a dry and soft cloth with a little neutral washing to clean it.5. To increase the effect, you need to use several sets of machines at the warehouse or stacking goods, several pieces. Converse: 1 inch = 2.54 cm or 1 cm = 0.393 inch