General description This Ultrasonic Pest Repeller is an upgraded, powerful plug-in device designed to effectively control pests such as mice, rats, spiders, cockroaches, ants, and mosquitoes. Utilizing advanced ultrasonic technology, it emits rapidly changing dynamic frequencies that disrupt pests' nervous systems, driving them away from your space without the use of toxic substances. Technical specifications Operating modes: 4 Silent mode frequency range: 25 kHz to 65 kHz Rodent mode frequency range: 10 kHz to 20 kHz (audible to humans) Coverage area: Up to 1600 square feet Usage Simply plug in the device for immediate pest control. For optimal results, use one device per room as ultrasound cannot penetrate walls or solid objects. Activate the rodent mode by pressing the button three times. Press and hold the power button to activate the sound and light alarm mode. Other information Includes a night light feature that activates in dark environments. The soft, eye-friendly light