I'm a big fan of cutting the cord. But this time I'm not talking about cancelling your cable and moving your Judge Judy marathons online - I'm all about going wireless in the audio department. Wireless speakers, wireless streaming, and, of course, wireless portable audio.
My Previous Bluetooth Daily Driver - Sony HBH-IS800
Up until a few weeks ago, I was using Sony's HBH-IS800, which deserves a separate review of its own if I ever get to it. Sony attempted to make something quite revolutionary at the time, and for the most part succeeded - the IS800 is absolutely unbeatable at a gym due to its size, seal, surprisingly decent audio quality (although it's crucial you create the right seal, otherwise they sound terrible), and price point.