LEFEET S1 Pro is a water activity propulsion device, with target users being diving enthusiasts and Standup paddleboard users The light and compact design is easy to carry, can provide you with additional power down to 40 meters depth, and provides three speed modes to meet various needs of diving or paddleboarding. Activities include, snorkeling, free diving, scuba diving and other underwater activities. The modular design allows multiple LEFEET S1 Pro to be combined via official accessories to obtain double underwater power. With a wide range of accessories, the S1 Pro can be used handheld with 1or 2 hands, fixing the LEFEET S1 Pro on diving tank, and wearing it on the thighs. It can also be connected to a stand-up paddle board (SUP) to provide propulsion to the board.