EFFECTIVE SOLAR RODENT REPELLENT --- For best performance, we recommend placing a rodent deterrent every 96 feet of your lawn when setting up your garden. It emits 3-4 second sound pulses every 40 seconds, penetrating the ground and driving pests away from the area where the sound travels. SAFE TO USE --- Humane and safe to use around pets and children, the anti-mole spikes keep moles away by emitting sound pulses. They won't hurt anyone and contain no chemicals, poisons or harmful ingredients. Effective and wide coverage --- Ultrasonic repellent pulses at low frequency for 3-4 seconds every 20 seconds, penetrating the ground and preventing moles from entering the protected area, because moles are sensitive to noise and vibration, this is to prevent them from damaging An effective method for exterior spaces such as lawns, patios and gardens. Solar Powered - Economical and Safe---With built-in high-quality polycrystalline silicon solar panels, the solar mouse repeller can repel mosquitoes. It can work non-stop for up to 400 hours after being fully charged. Just insert the solar mouse repeller into a sunny place in the garden. , turn on the switch to protect your garden. The garden is protected from pests and there are no batteries to replace. Easy to install --- no wiring or external power required. Simply plant your solar rat repellers in the ground, press a button, and they start working instantly. Excellent waterproof and rainproof design, so it works even in the rain.