Stereo Mini, TRRS, and USB - I assume the TRRS is for sticking it into a standard mobile phone’s headset port (TRRS = Tip, Ring, Ring, Seal for 4 connections: 3 signal and one shared ground - normally used for mic in and stereo output on a phone, but I’ve seen it used for A/V out 2 audio 1 video on an old digital camera - you can wire whatever you want). I was coming to ask what it does with the 2 output channels, but read the details again and see that it comes with a splitter so you can plug in your headphones, I assume, and the mic at the same time. If I were in the market for a cheap mic, I would probably bite.
OK, @ruancaiman, from your comment I’m in. Top positive review on Amazon agrees, with a warning to read the manual to avoid setup mistakes.