DP Ultrasonic DPLI-3110 Time-Saving Pest Pro Electronic Indoor Plug-in Pest Repellent Device - Safely, Odorlessly, and Effectively Eliminates Mice, Rats, Rodents and Other Household Insect Pests SAFE, NON-TOXIC, & ODOR FREE: DP Pest Pro uses short wavelength, high frequency ultrasonic sound waves to repel pests. These sound waves are virtually undetectable to the human ear, but very detectable to rodents and pests. 100% Safe, 100% Odor-Free, and 100% Eco-Friendly. (NOTE: Ultrasonic Sound should never be used around pet rabbits, or any other pets from the rodent family such as guinea pigs). EASY TO USE: Simply plug DP Pest Pro in to any standard indoor wall outlet. (NOTE: Ultrasonic sound does not penetrate walls or ceilings. We recommend 1 unit for each average-sized room. Additional units may be required in larger areas such as attics, basements, and/or garages). ELIMINATE HOUSEHOLD PESTS: The Ultrasonic Frequencies are very audible to insects and rodents. This constant sound irritation will send your pests scurrying for quieter confines, and when they leave, they will take their droppings, nests and risk of disease with them. SAVE TIME & MONEY: Stop spending your time and money on dangerous poisons, bait, sprays, and traps that are placed in and around your home. DP Pest Pro is 100% Safe and 100% Maintenance Free. Let DP Pest Pro technology give your wallet a much-needed rest. MONEY BACK GUARANTEE: DP Pest Pro offers a 100% Money-Back Guarantee. Use the Pest Pro Ultrasonic Pest Repellent risk free for 60 days. If youre not completely satisfied, we will refund 100% of your purchase price - no questions asked.