Safely and humanely repel pests with a YardGard Pest Repeller. This maintenance-free electronic solution to pest control will save you time and money.• Ideal for yards, gardens, porches, greenhouses, buildings, or anywhere plagued by annoying pests. • Repels raccoons, skunks, deer, dogs, cats, bats, rabbits, squirrels and more by emitting harmless sonic or ultrasonic sounds. • Avoid messy and dangerous chemical repellents with this simple electronic unit. • System can be mounted anywhere. • Provides continuous or motion-sensor operation, and will cover up to 4,000 sq. ft. • Offers dual operation; uses four C batteries or included AC adapter. • Weatherproof snap-on rain cover protects controls.