- [Working method]: The deflector of the solar probe will vibrate and emit low-frequency sound pulses of 400-1000Hz in all directions every 30 seconds, which will not cause any physical harm to these pests. They just feel bad and chase them away. No death, no poison, no traps. Solar Mole Repeller is an eco-friendly means, ideal for garden, farm, greenhouse On the top of the device, solar power can save energy and protect the environment. It can also be charged via the USB cable. Outdoor Repeller is made of high quality ABS plastic with a weather and UV resistant construction that protects against spray from all directions and can withstand rain, snow or sun, perfect for the garden, yard, farm…^3. [Eco-friendly Materials Environment]: Made of high quality ABS and aluminum tubes, IP65 waterproof and anti-corrosion, and will not weigh down the floor even after a long time working. The green outer shell is easy to hide in plants and can also be used as a garden decoration^4. on 700