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