| 摘要 |
An air inflation cushion as a float ball used in dive is disclosed. A battery and an-air compressor are placed within the float ball. Air through hole of the air compressor are connected to a respiratory tube. A bulb, a battery; a plurality of vents and a control switch are formed on the float ball. The switch serves for controlling the bulb and the air compressor. The battery supplies power to the bulb and air compressor; and the bulb emitting light intermittently to indicate position to a diver.
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