ECO-FRIENDLY MATERIALS - Made from premium ABS and aluminum tubing, IP65 waterproof and corrosion resistant and won’t burden the floor even after long time working. The soft product can be incorporated deeper and more firmly into the soil. The green outer cover can be well hidden in plants and can also be used as a garden decoration. Animal repellent is a gentle alternative to chemicals and toxics. Function: Mole repeller vibrates and generates sound waves about 20-30 seconds. It emits a sound pulse every 20 to 30 seconds, each emission of waves results in an acoustic signal. 400 to 1000 Hertz per summer It can repel moles, predators, voles, dandruff and other destructive rodents, ideal for garden, farm, greenhouse. Efficient Solar Charging — A high-tech solar module is built into the Mole Solar Repeller. No need for extra batteries, it automatically recharges from the solar panel. It absorbs energy during the day and works all night to prevent the return of softworms and rodents.