This set of six ultrasonic pest repellers uses dual-frequency technology to help deter rodents, mosquitoes, cockroaches, ants, and other common household pests without chemicals, traps, or odors. Each compact white device plugs directly into any standard outlet and operates silently while covering up to 1,292 square feet in open spaces. The repellers feature two adjustable modes: a Silent Mode operating at 20-65kHz for discreet use, and a Full-Band Enhanced Mode at 9-15kHz for more intensive pest control. The dynamic frequency conversion chip varies the ultrasonic waves to target a wide range of pests effectively. Constructed from durable ABS plastic, each unit measures approximately 3.15 inches in height and weighs just 0.08 pounds, making them easy to place throughout your home in kitchens, bedrooms, basements, and other areas. The plug-and-play design requires no setup or maintenance, and the energy-efficient 3-watt operation works continuously to create an unwelcoming environment for pests. Because the repellers use only ultrasonic waves, they are safe to use around children and pets. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm under Proposition 65. Each device operates on 90-250V US power and features simple button controls for mode selection.