It’s only natural to eek, shriek, or make some noise at the sight of a mouse or rat. Return the favour by creating an acoustically hostile environment for rodents with Tomcat® Ultrasonic Rodent Repeller. This plug-in device provides ultrasonic waves in a frequency range of 30 kHz to 64 kHz at 130 dB that cannot be heard by the average person. Can repel mice and rats wherever ultrasonic waves are present. Won’t affect you or your pets. Doesn’t interfere with everyday appliances and devices, including TVs, garage door openers, or pacemakers. Plugs into any 120 VAC wall outlet, too. Ideal for homes, apartments, boats, RVs, domestic kennels, stables, and even in areas where food is stored, prepared, or eaten.