● Effective area range of 625m2 ,that is with radius of 25m;

● Completely no chemical pollution but pure physical work principles.

● Strengthening waterproof functions via speical appearance design and waterproof rings in all interfaces;

● Special purpose design of effective acoustic waves for every 30~45 seconds, each sound lasts for 3 seconds;

● 400Hz acoustic waves emmited by a special audible device can stimulate the rodents and drive them away;

● Own patents of high effiectiveness of sunlight absorption and storage, the device could work all round clock normally in cloudy and rainy days, which overcomes the defect of solar energy;

● Without big batteries but solar photovoltaic battery installed inside absorbs sunlight and convert  into electrical energy for storage and application. More energy saving and environmental friendly;