It is suitable for water surfing in lakes, beaches, swimming pools and water parks. Product Features: Remote control positioning system, product with automatic switch device. For young people who can't swim, it is an important helper for swimming, protection and entertainment. This product is suitable for people weight below 30 kg. One notable advantage of this product is that it has a remote control, which is not available on the market, it not only can be operated manually by swimmer, but also it can be operated by remote control, and the remote control takes priority over manual operation, which is very suitable for adults to take care of their children, when the children swim far away, adults can bring it back by remote control