Apello 4 Pack Mole Repellent Solar Chipmunk Repellent Ultrasonic Outdoor Gopher Repellent Ultrasonic Solar Sonic Spike No Mole Killer Trap No Vole Poison Harm to Your Yard SOLAR MOLE REPELLANT: The mole repellent send out sonic pulses and vibrations every 30 seconds, which highly irritating to mole, gopher, vole repellant and other underground burrowing rodents to flee away from the coverage area. The repeller can be kept at there to continue to discourage the return visits. HUMANE and SAFE: Be safe to use around pets and human, no chemicals or mole poison. This chipmunk repellent repels pesky rodents in a humane way. No mole trap, no mole killer, no dispose of the body. Free of mole poison, safe for soil environment and nearby planting. EFFICIENT SOLAR CHARGE: Powered by a rechargeable solar cell, no need for extra batteries. An energy-saving and environment-friendly mole repeller solar powered with non toxic and maintanence free. It's almost the simplest way to get rid of moles, gopher repellent and voles. WATERPROOF and DURABLE: Waterproof and corrosion-resistant aluminum and ABS flame retardant material also applies to rainy days. Insert mole repellant into the soil, and make sure the top part is about 2 inches above the ground to avoid water flowing into the interior. WIDE COVERAGE: A sonic mole repeller solar mole chaser radiates in all directions. It's recommended to use multiple devices to overlap providing even more coverage. A solar powered mole repeller that you can install it anywhere in your yard, garden or lawn with sun exposure. Solar cell can be fully charged in 8 hours and last for 5 days. <span class="a-text-bold">Waterproof </span>with corrosion-resistant aluminum and ABS flame retardant material also applies to rainy days. Insert repellent into the soil, and make sure the top part is about <span class="a-text-bold">2 inches above the ground</span> to avoid water flowing into the interior; <span class="a-text-bold">Remove</span> the solar sonic mole repellent away from the ground<span class="a-text-bold"> during intense rainfall and</span> before the ground is <span class="a-text-bold">freezing</span>, during that time, better to charge the solar head once a week to make sure the battery is active. The effectiveness of the product depends on the type of soil to a large extent. Wet clay is the best conductive medium of sound; it is difficult to spread sound waves in dry, sandy or peat soil. Mole gopher will be disturbed and flee away after 2 weeks continuous use, but some may dig closer because they have lost their mind under the irritation. 2 months of continuous use can effectively remove most of the rodents. The solar mole repeller can be kept there to discourage the left ones or other pests which want to occupy the empty caves. We provide a one-year from the date of purchase return and refund service, please feel free to send message to to us if you have any product issues.