FreeWavz brings untethered music/fitness tracking to your workout

Runners and other fitness enthusiasts often listen to music while they're doing their thing, and a good portion of those folks also have a fitness wearable. Rather that have to wear two devices, wouldn't it be handy to go as lightweight as possible? FreeWavz, currently being funded on Kickstarter, wants to give you just that; fitness tracking and music, all …