Tomu Ultrasonic Pest Repeller for Bugs and Insects, Mice Repellent to Repel and Prevent Mouse, Ant, Mosquito, Spider, Rodent, Roach,Child and Pets Safe Control (6 Packs) [How It Works]The patented system sends high frequency ultrasound to disorient and perturb pests, so they can't feed or nest there, drive them from their home. Effectively reject rodents, roaches, spiders, mosquitoes, bed bugs, ants. [100% Kid and Pet Safe]Ultrasonic sound is inaudible to humans and household pets; Environmentally friendly alternative to harmful and dangerous chemicals, poisons and traps, no bad smell. [Easy to Use]Mini size, just plug it in any outlet; Stronge for use in average-sized rooms, kitchens, garages, attics and basements; Costs less than $10 a year in electricity, but can save hundreds in dangerous pesticide sprayings.Ultrasonic Pest Repellent has a LED indicator light to tell you it is working properly as well as it has a adjustable comforting night light (2018 UPGRADED). [WIDE COVERAGE] :With large coverage area up to 800~1200sq.ft, the pest repellent can be used in a diverse range of places, like bedroom, kitchen, garage, patio, basement, living room, etc [Risk-Free for You to Try]Generally the product takes 4 weeks or so to see result depending on the severity of pest. To free you from anxiety about the pest repeller, we offer service for full refund within 3 months and replacement within 12 months,Don't wait another minute to get it.