without a recording device
没有录音设备
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Mikey Digital also features a USB pass-thru connection for charging your device while in-use for continuous recording without draining battery life.
ENGADGET: Blue Microphones Mikey Digital portable microphone for iOS devices hits shelves, offers mobile tracking for $100
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