Detailed Product Description 1. Adopts 3-phase brushless generator to generate power, low noise and high efficiency.2. Convenient to use, never needs battery, just cranking for power.3. Controlled by electric switch, long life-span.4. Unique design,novelty,fashion and exquisite.5. It can work normally under 10 meters water.Size:147*61.5*45mmWeight:176g