Exactly. My whole point was to eliminate one of the chargers that I carry, since my bluetooth is old and the sound is getting worse anyway. I've been carrying a Plantronics Voyager 510 with it's own charger for a long time now. I figure since I've tried to get everything else with mini-USB I should reduce the charger count in my bag and get a mini-USB compatible bluetooth.

Turns out I went another way with it instead-- I got a Plantronics Discovery 925, which comes with a case that has a battery. So now I can carry the case and not have to charge the headset until I get back home. I can just use the case to top the battery off while I travel.

It's still one too many things to carry, but now I can charge the headset in my computer bag during the day without a power outlet, which is cool.