?Indoors, the Ultrasonic Pest Repeller with four speakers emits powerful ultrasonic waves and pulses that disrupt the brain systems of unwanted animals. Under LED flashing lights, the rat deterrent will disrupt rat activity in the dark, causing great irritation to rats and pests, forcing them to flee your home, car, or RV ?There are three different ultrasonic and pulse waves. With these three repelling modes, you can effortlessly chase away squirrels, mice, rats, bats, and various other pests. Just press the button to switch modes. When switching modes, the mode indicator for the corresponding mode will light up ?No more small but widespread rodent infestations: ultrasonic rodenticide - a compact and efficient solution with wide coverage Since ultrasound and pulse waves cannot penetrate walls and solid objects, we recommend using an ultrasonic mouse repeller in every enclosed space ?With our indoor pest repeller, you can experience hassle-free pest control in a safe and user-friendly manner. Plug it in and start working right away No nasty odors or pests to clean up. Plus, stop buying batteries, this device will save you money while keeping your space pollution-free. Enjoy a simple, effective, and cost-efficient solution to unwanted pests ?Please note that this is an ongoing rodent deterrent process. Initially, you may notice an increase in rodent activity, which indicates that the pests are being stimulated and affected by the device. It usually takes about 3 to 4 weeks to achieve noticeable results in pest repellency Specifications: ?Product Size: 12.5 x 11 x 8cm ?Weight: 186g ?Working temperature: 0-40?? ?Shell material: ABS + electronic components ?Input voltage: 5V ?Power: 6-8W ultrasonic frequency ?Sweep Frequency: 25-65KHZ+IKHZ Package included: ?1 x Pest Repeller ?1 x English Manual ?Other items not included