I don't get why the battery life on truly wireless headphones has to be so bad. Jaybirds (which have a wire between the earpieces) have an advertised battery life of eight hours (it's actually been a little more for me). If we imagine that the only drain on the battery is the wireless connectivity (which obviously isn't really the case, since sound is energy) then I could understand having half that battery life since they have twice the wireless traffic to manage. But that's four hours, not three (and like I said, some of the eight hours obviously goes to making the sound, so I shouldn't even be expecting it to halve). Is the missing battery life because of all those extra features they've added, or just inefficiency, or because they've done and Apple and prioritised small size (maybe they found putting bigger batteries in made them fall out)?
Four hours would be good enough almost all the time, but wouldn't cut it for long journeys. Of course, if you don't care about long journeys (or you don't mind taking an extra battery thing with you to top them up (I'm sure that will be available, actually I don't know how much charge you get out of the case that comes with them, could be enough for a long journey on its own) and taking a break to charge them half way through) then they could be great, I'm certainly not saying I don't see the appeal, I just think I'd sacrifice some of their touted features for battery life closer to four or five hours.