An external power supply can be connected simultaneously to power the smartphone and the microphone.
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dual usb cable - Best Buy
High performance USB male to male cable connects computers with USB 3.0 type A port (backwards compatible with USB 2.0 type A port) to USB peripherals
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USB 3.0 uses less power, 10x faster than USB 2.0, transfer HD movies and large files just cost seconds, the superspeed transfer rate need to connect
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90 Degree Double Elbow Type C Micro USB Cable With Fast Charging For Samsung, Huawei And All Mini Phone From Cccfactory, $0.99