Easy to use: repellent ultrasonic plug in a power outlet; The ultrasonic repeller start when the blue light turns on,Repel many kinds of Against rodents, hamsters, mice, fleas, ants, mosquitoes, flies, spiders, cockroaches, bugs, rodents, and insects Wide Effective Coverage Area: The effective area can be up to 1600 SQ; Please put a single mouse repellent in each room because the ultrasonic waves cannot penetrate walls and solid objects, 6-12 units are enough to repel control in (depending on the severity of infestation) Quiet and effective: Ultrasonic repeller work with low frequency ultrasonic waves, which are difficult for humans to hear. But it is very effective for rodents and , ultrasonic waves let them leave your home quickly! The principle of Ultrasonic Repeller: Through low-frequency ultrasonic waves, the brain and auditory nervous system of mice and are stimulated, to expel most types of effectively Less power consumption: keep you from cleaning up dead , odor and corpses of plug in control, no batteries, saving a lot of money. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage:AC110V Colour:White Material:Plastic Package Contents: 6 * Ultrasonic Repeller(without night light) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.