NDLBS Ultrasonic Pest Repellent(2 pack), Best Electronic Pest Reject Repeller Plug In -Mosquito Repellent, Pest Control for Roach, Mice, Spider, Ant,Rodent,Bedbugs &ndash;For Indoor and Outdoor Ultrasonic Technology : Pest control ultrasonic repellent uses state of Bionic wave , Electromagnetic wave and ultrasonic wave technology to drive pests away , which drive pests out of your home for good. Mice, rats, spiders, roaches, mosquitoes, ants ,snakes , rats; None are immune to our Electronic Ultrasonic Pest Repellent and completely leave after a few short weeks of us Non- Toxic and Eco-friendly:100% Kid and Pet Safe -- This Ultrasonic mouse repellent is Odorless, noiseless, no chemicals and no radiation. Safe for human (even pregnant woman & baby) and pets like dogs and cats. Easy to Use& Low Consumption :Just plug the ultrasonic pest repeller in any outlet and it will do the rest by itself. The output power is low to 5W, very low power consumption. 7*24 hours working is recommended for best effect. 60-DAY MONEY BACK GUARANTEE - MONEY BACK and 100% SATISFACTION GUARANTEE:Feel free to contact us to ask a new replacement or money back if you haven't see any result after plugging in 4 weeks or have any other dissatisfaction. We will reply to you within 24 hours