Unverified80% confidenceDecision RuleTime unknown
USB输入分两种:USB-DAC(音箱作声卡,音质好、需驱动/免驱)与USB仅供电/播放U盘(音质差);选购时确认是'USB Audio/DAC'而非仅充电口,否则接电脑无法数字直连
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80%
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