Safe Ultrasound: Generating pulse and ultrasound, which stimulate the central nervous system of mouse and mouse, takes 3 seconds every 20 seconds, and the effective diameter of each repellent is 15M. It is very effective in repelling mole and mouse and not harmful to humans, animals and poultry, ideal for garden, farm, greenhouse Smaller, more efficient: The fact that functionality and is retained, the size of the mole scare is reduced, which takes up less space, and the overall color can be integrated into the environment. 3.5 cm solar panels * 3 .5 cm in amorphous silicon, energy conversion up to 10%. There can preferably be enough energy on cloudy days. No electricity consumption, no costs, very environmentally friendly and reduce electricity costs. Environmentally friendly materials: made from of high quality ABS and aluminum pipes, IP65 waterproof and corrosion resistant and will not pollute the ground even after long time working. The green outer shell can be well hidden in