免费版本内置4种配置文件（外接电源供电，USB供电，电池供电，电池电量低），而99美分的付费版本则允许用户自定义配置文件。
The free version comes with 4 profiles (Battery powered, low battery, A/C powered, USB powered), while the 99 cent pro version allows you to build you own.
免费版本内置4种配置文件（外接电源供电，USB供电，电池供电，电池电量低），而99美分的付费版本则允许用户自定义配置文件。
The free version comes with 4 profiles (Battery powered, low battery, A/C powered, USB powered), while the 99 cent pro version allows you to build you own.
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