Easy to use: Simply plug the electronic insect repeller into the outlet, the first switch turns off the light. The second turns on the light. Make sure to install it vertically, 7-31 inches from the floor. And make sure there are no obstacles in front of the repeller, such as curtains or cabinets. Please note that this takes a process Say goodbye to pests: The insect repeller keeps all kinds of insects away from your house, such as spiders, mice, mosquitoes, rats, mice, cockroaches, ants, snakes, etc. No noise, will not disturb you and your pets. Suitable for indoor use, such as homes, restaurants, hotels, hospitals, office buildings, warehouses, etc.Wide CoverageThe ultrasonic insect repeller can be effective in rooms up to 1100 square feet. For best results, it is recommended to use one per room. For larger storage spaces, it is recommended to install more than 2 repellents. Ultrasonic waves will not penetrate walls and solid objects. Ultrasonic insect repeller: Adopts ultrasonic chip technology, uses ultrasonic technology to stimulate the sensory system and nervous system of mice to keep pests away from you. Safe for humans and pets: The mouse repeller is non-toxic and harmless, safe for pregnant women and babies. Humans and pets cannot hear the ultrasonic wave. No need to clean up dead insects, low power consumption. Give you a safe and environmentally friendly beer glass