3 Channel Audio Mixer Digital Stereo Sound Board Console System DSP Scene Effect with Track Record Soundcard OTG Function XLR RCA Input for DJ Studio Live Streaming - Walmart.com
microphones - Mic-->48v Heyden Phantom power (XLR)-->USB MIXER(XLRinput pin) - Music: Practice & Theory Stack Exchange
Behringer Xenyx Q502USB Mixer Audio Routing in Detail - YouTube