Descriptions: Color: White + Black Material: ABS Plug Type: EU/US/UK Plug Power Supply: AC 90V-250V, 50-60Hz Power: 5-6W Ultrasonic Frequency: 22-65KHz Effective Range: 80-120 Square Meters Working Temperature: 0-40°C Product Size: 60*30*90mm / 2.4 * 1.2 * 3.5in Feature: Effective Coverage Area: 80~120 square meters. The best coverage area is less than 60 square meters. Smaller the area is, greater the effect is. Stable and effective. Directly plug into an AC outlet, and make sure that no item blocks its emission. Ultra-low power consumption; without effects to electrical equipment. No Harmful Chemicals Or Poisons, Noiseless, Safe, Easy To Use. Repels Bugs, Ants, Mice, Cockroaches, Mosquitoes, Spiders, Rats, etc. Non-toxic& Environment-friendly,Standard Wall Plug-In,Indoor Use Only Note: 1. This machine should be installed at 80-120cm away from the floor.And vertical to the floor and plug to the power socket. 2. The installing point should be avoided to be in the back of the curtain,fridge, and any furniture that deterring or attaching frequency. 3. It's normal that the mouse and vermin will increase at the beginning of the using days.Because they are moving away from their living place after the attack of ultrasonic. 4. Don't clean the machine by strong impregnant, water or damp cloth.Use dry and soft cloth with some neuter wash to clean it. 5. To increase the effect, you should use several sets machines at the warehouse or goods pile-up, several rooms. Package Included: 1 * Ultrasonic Pest Repeller