Solar charging: Powered by solar cell, no additional battery required. By installing in a sunny place, you can charge the built-in battery at any time and do not have to worry about the battery running out - 7 days to ensure normal work on rainy or cloudy days. Waterproof and durable: the mouse repellent is made of high-quality ABS and PVC materials and does not easily corrode if placed outdoors for a long time, you do not have to worry about using it on rainy days. Harmless to humans and animals: Solar ultrasonic mole repellent emits strong vibration waves and beeps. Animals feel uncomfortable and can be repelled without harming them. As it is an ultrasonic sensor, a quiet noise can be heard. It is safe for humans and animals, but it is recommended to place it outdoors. Large effective working area: for optimal performance, it is recommended to place mole repellent every 70 feet on the lawn. The sound pulses emit sound pulses of 3-4 seconds every 30 seconds, penetrate into the ground and force the parasites to leave the area through which the sound spreads. Easy to install: The installation is completed by simply plugging into the ground. Because it is compact and convenient to carry. You can easily install repellents in different places. It protects various things such as hotel gardens, village gardens, farms, rice fields and agricultural fields from moles.