Here's an environmentally friendly way to keep the neighbor's pets or wild critters from damaging your lawn, flowerbeds and gardens. This Repell™ pest repeller runs on solar power and has a built-in infrared motion detector. When a critter is detected, it sends them packing by emitting a safe, humane ultrasonic 45 KHz tone that animals can't stand. Also features weatherproof design, 24-hour protection, NiCad battery with 72-hour run time per charge, quality solar panel and more. 14"H x 5" x 5" each. Set of 2. Factory serviced to meet original quality standards. May have slight cosmetic blemishes.