â [HOW IT WORKS]This ultrasonic pest repeller, equipped with four powerful speakers, emits ultrasonic sounds and pulse waves that disrupt the nervous systems of those unwanted critters. Its flashing LED lights further disturb their activities in the dark, irritating rodents and other critters, and driving them away from your home, car, or RV.â [Three Effective Modes]This mice-repellent plug-in uses advanced microelectronics to offer three modes of ultrasonic and pulse waves, effectively repelling squirrels, mice, rats, bats, and other pests. With a simple press of a button, you can switch between modes, and the corresponding indicator light will show which mode is active.â [Durable and Continuous Protection]This device works continuously to deter rodents. Initially, you may see increased activity as pests are irritated but expect noticeable results within 3 to 4 weeks. Keeping the device plugged in is essential for ongoing effectiveness.â [Mini Size, Wide Coverage]Despite its compact size, this ultrasonic rodent repellent offers powerful protection, covering up to 1,290 sq. ft. For best results, use one device per enclosed space, as ultrasonic and pulse waves cannot pass through walls or solid objects. Keep your indoor areas rodent-free with this efficient solution.â Enjoy effortless pest control with our indoor repel-just plug it in, and it's ready to go! No unpleasant smells or cleanup needed, and no batteries are required. This cost-effective device offers a simple and efficient solution for keeping your space pest-free.ABS