Solar Mole Repeller, 4 Pieces Ultrasonic Pest Repeller - Mole Control with IP65 Waterproof, Garden Mole Repellent Mole RepellentEffective Solar Powered Rodent Repellent --- For optimal performance, we recommend placing a rodent repellent every 96 feet on your lawn when installing your garden. It emits a 3-4 second sound pulse every 40 seconds, which penetrates the ground and drives the pest away from the area where the sound is transmitted. Safe to use --- Humane and safe around pets and children The mole cleats keep moles away by emitting a sound pulse. They do not harm any animals in any way because they do not contain any chemicals, poisons or dangerous ingredients. Effective and Wide Coverage --- Ultrasonic pest repellents emit low-frequency pulses for 3-4 seconds every 20 seconds, which penetrate the ground and prevent moles from entering protected areas, because moles are sensitive to noise and vibration and is an effective method of preventing them from damaging outdoor areas such as lawns, yards and gardens. Solar powered - economical and safe --- Built-in high quality polycrystalline silicon solar panel, the solar mole repellent repels mosquitoes and works continuously up to 400 hours on a full charge, just plug in the solar mole repellent in a sunny spot in your garden, turn on the switch and it will protect your garden from infestations without having to change batteries. Easy to install --- No external wiring or power supply is required. Simply plant the solar powered rodent repellents in the ground and press the button and they will start working immediately. Excellent waterproof and rainproof design, so it works even in the rain.