The built-in rechargeable battery has a life of five hours.
内置的充电池可使用长达五小时。
It has built-in rechargeable battery and looks cool, light weight, small and compact - it weighs only 90g.
它带有内置式可充电电池，看上去很酷，重量又轻，小巧紧凑——只有90克重。
It has a built in USB interfaced rechargeable battery for ease and convenience.
它有一个内置的USB接口为灵活，方便的可充电电池。
It has a built in USB interfaced rechargeable battery for ease and convenience.
它有一个内置的USB接口为灵活，方便的可充电电池。
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