The Ultrafit 3000 is Polk Audio’s all-in-one sports machine. Built to stay put during the most vigorous of exercises, the full-spectrum speakers are constructed with adjustable ear clips to eliminate any slippage. The cords—with their Kevlar core and cloth exterior—are tough and don’t get tangled like plastic does. The three-button, in-line control is simple to use, and seven different eartips ensure a custom fit. Completely sweat- and moisture-resistant, the Ultrafit 3000s are happy with a rinse when your workout is done.