Looking for a safe and effective way to keep pesky rodents and snakes out of your garden or yard? Look no further than the Mole Repellent Solar Powered 8 Pack! These highly efficient and environmentally friendly mole deterrents are powered by solar panels, meaning no charging costs and no need for harmful chemicals.The working principle for this vole repellent is simple yet highly effective. The unit emits esonic pulses every 30 seconds that penetrate the soil and force pests out of the area covered by the sound. This can effectively repel a wide range of rodents, including moles, gophers, groundhogs, chipmunks, and voles hiding in lawns, gardens, and yards. And with an effective range of approximately 7,000 square feet, you can cover a large area and protect your plants and crops.These solar powered chipmunk repellents are also safe for children and pets. Made of high-quality ABS and PC materials, they are designed to be waterproof and durable in all weather conditions. They can be used with peace of mind even in bad weather such as rainy days.Installation is simple and hassle-free. Simply insert the stake into the ground, making sure the top is above the surface roughly 2 inches. Position the ultrasonic chipmunk repellent where it gets full sun on the panel to recharge the unit. And with the included 8 pack, you can cover a large area and protect your garden or yard from unwanted pests.