Usage Tips:About this item Sonic Mole RepellentThis mole repellent emits 3-4 seconds of low frequency pulses in every 30 seconds, which penetrate through the soil and discourage pests from entering the area covered by the sound waves. It can minimize damage to your farm, garden, lawn or yard caused by moles, voles, shrews, gophers, and destructive ground rodents. Efficient Solar PoweredMole repellent is powered by a efficient solar panel, allowing sunlight to charge the batteries through the built-in solar panels .A full charge for around 4 hours can continue to work for 5-7 days to ensure normal work in any weather conditions. Waterproof & DurableOur sonic gopher repellent is made of of ABS and PVC, with waterproof and corrosion-resistant and flame retardant material design. The waterproof performance is better, and it is not afraid of rain. Powerful ProtectionEach mole repellents has an effective range of up to 7000 sq ft. Recommend an installation of the yard mole repellents on every 70 feet throughout your lawn for optimal performance. Easy to UseChoose an optimal location for sun exposure so that the solar panels can receive light as directly as possible.