Short battery life - use one earbud at a time, when battery low - put it to charge, and put into ear another one charged. Often Zoom or Teams can't find microphone, but speaker is always reachable. If that's the issue - I put ear bud into charger, take another one and put into ear - that way Zoom or Teams can locate microphone. I have set connected to laptop (BT dongle from the set) and cell phone (over BT).