This non-pesticide device drives out and wards off damaging moles, gophers, shrews, woodchucks, and burrowing rodents. Dig a hole. Insert battery-powered aluminum tube into the ground. Pack soil tightly around the unit. Turn it on. Irritating ultrasonic sound waves and ground vibrations occur every 15 seconds. Gopher control and mole control is easy. Rodents flee from your yard, escaping to quieter places. DO NOT POUND INTO GROUND. Loosen or wet soil. Push MoleChaser into ground. Tightly pack soil around MoleChaser. How does the MoleChaser Stake work? Underground rodents have poor eyesight. Hearing and sensitivity to ground vibrations are well developed. These senses warn gophers, moles, and other burrowing animals of danger so they flee dangerous situations. MoleControls sonic sound bursts create ground vibrations that frighten ground rodents. The MoleContro works as for gopher control and mole and vole control. Animals are not harmed. No chemicals or sprays. Does ground composition affect the coverage area? Coverage is about a 60 radius from base. Heavier soils such as clay are superior transmitters of sound and vibrations than are sandier soils. Coverage area is reduced somewhat in denser soils but products remain effective. Whether for prevention or removal, the Mole Control units help keep gardens and lawns free of burrowing rodents like moles, voles, shrews, pocket mice, ground squirrels, and gophers. NOTE: Do not expect instant results. Usually, continuous usage for 7 to 14 days is needed before effective at gopher control or other rodent control. Initially, the Super Sonic Mole Chaser can cause increased pest activity. Initially, the pests mistake currents as food source and leave when they realize the currents are not food. Make sure earth is firmly packed around each stake. Specifications: Designed to repel: moles, gophers, ground squirrels, pocket mice, voles, shrews, kangaroo rats and other burrowing creatures. "Mow Over Design" if completely inserted into ground. Reinforced anodized aluminum casing: lightweight, watertight and weather proof. The water-tight screw cap allows easy insertion at ground level. Change batteries by pulling out the patented battery cylinder while leaving unit in ground. Coverage: 60 ft. radius from base (120 ft. diameter). Up to 11,250 sq. feet or 1/4 acre. Two modes for more accurate targeting the problem. Power: 6V DC by 4 "D" Batteries Battery Life: 4 to 6 months (Supersonic Mode) 10 to 12 months (Long Life Mode) Frequency: 300 Hz. Duty Cycle: 15 seconds Dimensions: 16" x 2". Weight: 11.5 oz. Limited Lifetime Manufacturers Warranty. DO NOT POUND INTO GROUND. Loosen or wet soil. Then push MoleChaser into ground. Then pack soil tightly around MoleChaser.