How It Works Rodenticide protects your garden and lawn from moles, voles, mice, rats and other burrowing animals. Usually, it takes about 2-4 weeks to remove from your garden. Non-toxic and safe for children and pets The device will not harm humans or animals. It does not use harmful chemicals, traps or poisons to kill/get rid of animals. It uses vibrations and sound pulses to penetrate the ground, leaving an unbearable environment for burrowing rodents and forcing them to leave the property and find other places to live. Waterproofing and Solar Waterproofing feature a sturdy construction and sealed design that allows it to work under water, wind, sun and rust. The mouse repeller is made of materials to ensure maximum durability and longevity. The rodent repellent is charged by polycrystalline silicon solar panels to accumulate electricity to operate during dark hours. Easy to install Open the driver. Insert the nail into the ground (if the ground is hard, you may need to dig a hole), making sure the top is flush with the ground to avoid a tripping hazard. The unit is solar powered, so install it in a sunny location to fully charge the unit. It is designed for outdoor use such as lawns, gardens. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.