This revolutionary pest control system rids your home of rodentsand roaches without expensive monthly treatments or toxicpesticides! It''s powered by a microprocessor that works throughthe wiring in your home. Just plug the unit into any standard walloutlet, and pests virtually disappear! Electromagnetic signalspenetrate right through walls, protecting up to 2000 sq. ft. Safefor kids and pets. 4"H x 2 3/8"W x 1 1/4"D.