The booster adopts DC brushless synchronous motor which is superior to similar products in the market, which can not only keep the speed and thrust constant, but also change quickly with the speed max comparable to that of men's 200 meter freestyle world top1.3 speed during use, adapting to different diving loads, viewing positions and water environment. Compared with other professional and large diving equipment, the lightweight booster can be set up one-hand operation, and its lower D-buckle and traction rope, so that one-hand operation is more balanced and stable, but also free the other hand, so that the ear pressure balance, underwater photography and other operations are convenient. The use of high energy density battery, as well as optimized paddle and machine design to improve output efficiency, the use of up to 75 minutes, so that underwater experience and exploration do not due to the lack of time and fleeting, beautiful measures. Low power "flicker + vibration" dual warning warning, at any time to grasp the underwater use of the machine battery status. The booster adopts ultra-quiet motor, and the noise of the whole machine is controlled within 60db, effectively reducing the interference to Marine life.