CyberLabs AR300 Solar Powered Smart & Humane Animal Repeller for Moles, Rodents & More with Ultrasonic Speakers Solar powered with built in rechargeable battery; with just 4.5 hours of direct sunlight per day, it will run 24/7/365 days Powered by 3 C size alkaline batteries for areas without sun exposure; battery life lasts up to 60 days IP54 weatherproof rated unit, covering up to 860 square feet (80 square meter ) above ground area Equipped with bi-directional ultrasonic speakers emitting high decibel sound waves to all directions Helps repel rats, dogs, cast, rabbits, raccoons & small animals; Safe for the environment and safe around children