WFT - For stereo BT headphones I recommend Kyocera's solution when they are on sale. I bought my first pair for $25 and got two more on a woot-off for $20@ for Christmas presents. Read the Amazon write up - note they do not use the micro USB used for the N810 for charging, but an even smaller USB connection. I get about 15 hours between charges, decent sound for listening, fair sound for talking.

I think they are discontinued, but for $20 they are worth it.