Camkey 2 Pack Solar Mole Repeller Ultrasonic Repel Mole, Voles, Gopher, Mice and Rats, Rodent Sonic Repeller Pest Control, Waterproof, Garden Yard Lawn Farm REPEL: Send out a burst of sonic waves in every 40 seconds,that can drive away moles, voles, mice and rats within about 7,000 sq.ft, build a safer place for you and your family. SOLAR POWERED: Camkey Mole Repeller is powered by a 70mm x 90mm big size solar cell. When fully charged, the batteries have enough power to operate the mole repellent through the hours of darkness and maintain continuous 24-hour protection, much economical compare to battery powered mole repeller. LONGER ALUMINUM TUBE: Can be plated into the ground deeper and more firmly. Insert the spike firmly into the ground and enjoy the pest free environment. CHEMICAL-FREE: Camkey Mole Repeller is safe for use around pets and children. No need chemicals, poison sprays or traps. WEATHERPROOF: Suitable for all weather conditions. But Choose the best sun location, so the solar panel to can receive the light as directly as possible.