I currently have wireless headphones which work via radio signal, but these have a massive base-station which needs to be plugged into the mains and wired up to the computer. They're great, but they're getting old (they've had literally thousands of hours of use) and they aren't portable at all.
I figured that Bluetooth headphones would be the next step up. Not iPod-style two-earpieces on a wire style, though. See the comments for what I mean. :)
Any help appreciated, as always.