1 - Wide Coverage Area - Effectively repels rats, mice, squirrels, cockroaches, spiders and more rodents and pests. The Ultrasonic Pest Repeller is effective within an indoor area up to 600 square. ft so so no worry your room is too big to cover. It's widely used in homes, warehouses, offices, gardens, hotels, etc. 2 - Easy to Use - The mouse repellent adopts ultrasonic technology, which is non-toxic, chemical-free and odor-free, it is completely safe for people and pets. No need to clean up dead pests, no bad smell and Corpses, no battery required and save a lot of money. 3 - Multiple Mode - 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. 4 - Long-term Efforts - Persist in using for 3-4 weeks. Early caries animals may become abnormally active, but later they may disrupt their nerves and avoid approaching the area where the rodent repellent is placed. This can effectively protect your kitchen, warehouse, room, and plants for a long time. 5 - Working Principle - 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 mouse-free space within a month (time varies depending on the environment).