No molehills will appear in your yard - Solar Mole Repellent is an environmentally friendly way of minimizing damage to your farm, garden, lawn or yard caused by moles, voles, shrews, gophers, and destructive ground rodents.^ 5,000 square feet coverage -1 Pack mole repellant spikes will cover approximately 40 feet in radius, an area of 5,000 square feet. Emits sonic pulse every 30 seconds. This is a piercing Ultrasonic pulse and vibration that will penetrate the soil underground, which will not physically harm these pests, only let them feel uncomfortable and escape.^ Safety and environmental protection - Harmless to the environment, humans and pets. Eliminates the use of mole traps, mole killer or mole poison.^ Efficient Solar Powered - A high-tech solar panel is built in the solar mole repeller. The battery will recharge from the solar panel automatically. A full solar charge in full sunlight for around 4 hours will enable the gopher repellent to operate for 4 days even in unfavorable weather without interruption. The battery life is about 2 years.^ Waterproof and durable - Waterproof rating IP44, the head unit is embedded in a waterproof ABS plastic housing while. It can work normally when it scattered rains, and it is recommended to remove it and move it indoors during heavy rain. The repellent is perfect for outdoor pest control in open patio, lawn and garden.^