Enever (2-Pack) Garden Yard Solar Powered Mole, Rodent Sonic Repeller Pest Control for Mouse Voles, Rates,Snakes,Pests and Rodents Repeller Working range: about 100 foot diameter. Easy and safe to use. No Poison, No Chemical.Rechargeable battery: 600 mAh. Frequency: 400Hz50Hz. Idea pest control device to keep rodents away from your garden or lawns by utilizing both sonic wave sound and vibration technology. Solar Powered Mole with waterproof on/off switch, can turn on/off products at any time. Weather resistant. Chases moles and burrowing rodents. Does not affect pets. Produces a sonic tone underground at 30 sec intervals, over an area of about 6000 sq feet to drive them out. Use to rid your yard and garden of plant damaging moles and voles without the use of dangerous toxins or traps.