SereneLife Ultrasonic Pest Repeller, Pest Chaser, Motion Activated, Outdoor Ultrasonic Sound, Flashing Led Lights, Alert Sensor, Sensitivity Adjustable, Solar Panel, Rechargeable Batteries (PSLSAR3) OUTDOOR USE: Best for yard and patio use, covering up to 30 + square feet. It works for unwanted fox, deer, raccoons, skunks, squirrels & more for gardens, backyards & front yards. ECO-FRIENDLY: To ensure a healthy home, this solar power pest repeller is constructed as an Eco-friendly pest eliminator. It does not use any chemicals or harmful substances. The ultrasonic frequency serves as a trap that lures in pests. SOLAR RECHARGING BATTERIES: The ultrasonic pest repeller provides constant all day and night coverage with its solar panel and included 3 'AA' rechargeable batteries. SAFE FOR HOUSEHOLD PESTS: The electric pest repeller can be made safe for pet cats and dogs by changing the frequency. Simply turn the frequency control button to number 3 or 4, to keep pets safe while repelling pests. DURABLE WATERPROOF CONSTRUCTION: The solar power ultrasonic pest animal repeller is made of rugged, marine grade IP-44 construction, making it perfect for yard use.