There are a lot of wireless headphones on the market, but you are limiting yourself only wanting earbud headsets. The "cumbersome" kind sound way better and are readily available. If you are stuck on in the earphones and want Bluetooth then it may be easier to get an MP3 player with built-in wireless stereo Bluetooth.
I am trying to find a solution to watching TV or listening to music without disturbing everyone else. I do not like wearing cumbersom headphones and would like to finde a wireless or blutooth solution that would allow me to connect bluetooth in ear headphones (currently Jabra Clipper) to an Mp3 or TV that currently does not support bluetooth ie connect an adaptor to a 3.5mm outlet, I have found a couple of adaptors on line but do not be able to buy them or ship them to Australia...anybody have any suggestions?