Weitech 0675 (Battery Powered) Drive Out Destructive Ground Rodents! Repels: Moles, Gophers, Shrews, Ground Squirrels, Voles, Pocket Gophers & Other Burrowing Rodents Proven Effective: High-tech sonic sounds repel burrowing rodents in a clean, humane way. The complex, variable frequency sounds are directed through the tube to penetrate the tunnel systems. Sounds impact rodents' nervous systems; they cannot adapt, so they leave for good. Independent laboratory and university testing have proven the effectiveness of sonic pest control technology. Environmentally Friendly: No chemicals go into the soil or onto the lawn. Unit does not affect humans, unborn children or non-rodent pets such as dogs, cats, birds and reptiles. Weather Resistant Housing: Protects heavy-duty, solid-state electronics, even from rain, snow and sprinkler systems.(Do not expose unit to standing water). Easy To Use and Portable: Install 4 "D" cell batteries and close the hinged cover. Use the removeable digger tube to excavate mole or gopher holes. Insert the tube into the generating unit, and the other end into a gopher hole or mole tunnel. Move the unit to new locations as needed to keep rodents from returning. Ideal for yards, gardens, orchards, and anywhere else ground rodents are a problem. Features: Repels burrowing rodents humanely with sonic (audible) sound waves Removable Digger Tube Long Battery Life: Up to 6 months. Simple Installation, just install in infested area. Weather Resistant No Maintenance Required. Safe Around Children and Pets. No Poisons, Chemicals or Traps. Dimensions: 6" x 4.5" x 9" with digger tube attached Weight: 10 oz. (without batteries) Coverage: Up to 2500 square feet of lawn or garden. Power Requirements: 4 "D" cell alkaline batteries, NOT included. Sound Pressure Level: Up to 90 dB. Frequency: 2,000 - 5,000 Hz. Included: Generating unit & digger tube. "Mow Over" MOLE STAKES which go into the ground, not into activ