How It Works: Due to equipping with the dual chip, the Ultrasonic Pest Control Device continuously affects the pests' brain system; The built-in 12 LED strobe lights disturb their activity in a dark environment in addition; Rodent Deterrent effectively makes your space uncomfortable rodents and bats by emitting ultrasonic sound, pulse waves, and flashing the lights; Get a pest-free space within a month.Multiple Mode Switching: Manually switch the deterrent modes to achieve the pest control target you want; The mice repellent plug-in is designed with types of rodent-repelling-mode, preventing rodents and critters from getting used to the same mode; Choose mode ULTRA, mode TRANS, or mode DUO to keep squirrels, mice, rats, bats, and critters at bay in an easy way.Powerful Effective: Place the mice repellent in the Attic, Garage, Basement, Room, Storage room, crawl space, RV, or any indoors 100-240v available; Save your money for rodent control, and prevent your property in mice damage, deterring squirrels, mice, rats, bats, and critters out of your home.Larger Coverage: The Ultrasonic Rodent Repellent effectively repels mice, rats, squirrels, bats, and other pests with a powerful wide-coverage deterrent; The electronic mouse repellant rat control device affects within an indoor area of up to 1067 sq. ft; Since the ultrasound and pulse waves can not penetrate through walls and solid objects; Plugging one ultrasonic mouse repellent in one space enclosed is that we recommended.Long-term Repellent Process: Sometimes they may be more active during the beginning of use, that's showing that the rodents are irritated; After a prolonged period for up to months, the rodents, bats, and critters will begin to disappear from where they live in; Please make sure the ultrasonic pest repellent be using continuously with patience to get the better result.