Premium Functionality and Style: The Yardmaster Solar Pest Repellent includes a LED light inside so it can also be used as a fashionable solar garden light. It features only the highest quality and efficient Polycrystalline silicon panels to guarantee a long-lasting service Safe & Humane: Our repellers use ultrasonic pulses that enter the soil to create sonic vibrations to deter burrowing pests from ever making a mess of your yard again without harming the animal Dependability & Maintenance: Since the repellers do not need to be plugged in for any kind of power source, we save you the time, money and hassle of charging batteries while reaping the benefits of using the earth's natural power source as energy Easy installation: Just dig an 8" hole, then insert device 2-4" above the ground. Leave the repeller out to the sun for at least 8 hours to charge before use. Ensure solar panel is placed in full sun and not obstructed by plants or foliage Features Made from durable ABS plastic 3V/80mAh Polycrystalline silicon AAA 1.2V 600mAh Ni-MH battery 50Hz - 400Hz frequency range 300 square metre cover range 8 hours charging time Features easy on/off switch With RGB colour changing LED