[Newest Technology] Ultrasonic pest repeller plug in has variable frequencies and combines different type of ultrasonic, bionic and sawtooth waves to ensure pests cannot adapt and develop immunity meaning your house will be pest free forever. It's powerful features, as the newest sonic repellent technology guarantees 100% results getting rid of mice, rats, spiders, insects, cockroaches, bugs and other pests. [Lifetime warranty] We are so confident with the quality of our rodent repeller that we offer a lifetime warranty. No advanced set up needed just plug into the socket and press the button to choose the mode. [Humane pest control] Advanced technology avoids the use of poisons, chemicals, traps and killing of rodents, but rather uses ultrasonic and electromagnetic waves to control rodents, mice, rats, spiders and mosquitoes is the most humane way to keep your home pest free [Compact size] - Ultrasonic pest repellent is smaller than most products on the market making it versatile and perfect to remain to blend into your home. Insect repeller is also odourless, silent and has no radiation making it safe for mothers and infants and energy-saving. [Additional Feature] Electronic pest repeller is designed to allow the addition of essential oils to stimulate the rodents auditory and nervous system to achieve stronger results to deter spiders, mosquitoes, mice