Ask HN: What mic/headset gear do you use for conference calls?

I'm on a remote team where everyone uses different gear on conference calls (mostly GoToMeeting, sometimes Slack). They're all a bit terrible. Everyone has fuzzy audio, echoing and background noise, except the one guy who uses an old Plantronics DSP400. Some of our gear: * Plain MacBook mic/speaker. * Jabra Speak USB. Lots of room reverb, catches a lot of background noise, audio quality not great. * Plantronics Voyager Legend one-ear mono handsfree (BT 3.0). Range is short, audio quality is fuzzy, lots of background noise. * Plantronics Voyager Focus "binaural" stereo headset (BT 4.1). Much better than the Legend, but not very portable, and has to be used with one ear uncovered since there's no audio passthrough (you don't hear yourself speaking, which is very uncomfortable). * Plantronics DSP400 wired USB headset. Evidently the best audio, but not very portable, and one more thing to plug into a computer. * Logitech H800 stereo headset (proprietary wireless via USB dongle). About the same as the Voyager Focus, minus all sorts of phone-related features we don't need. I'm particularly annoyed that stereo headsets don't provide "playthrough" (right technical term?), where your own audio is played back at a low volume. If you wear a headset and speak, you'll not hear your own voice except the muffled rumbling coming from your throat, which I find extremely uncomfortable. Coffee-shop noise seems to be particularly problematic for all headsets. I'm surprised there's no headset that provides an extremely short-range, directional, high-quality mic, so that they don't pick up any ambient noise except your voice. Everyone seems to be able to make a good headset; the mic is the weak point in all of these. Any suggestions? Has anyone experimented with other solutions, such as a separate headset with a standalone recording mic? Has anyone solved the passthrough problem?