Sennheiser’s OCX 686i SPORTS has been created to energize your music experience while you concentrate on your sets and reps, or knocking out the miles on the road/treadmill. Enjoy your favorite music at the gym without distractions with great isolation from the in-ear design. Super secure fit is achieved with the ear-hooks to help keep the OCX 686i in place no matter how intense the work-out. The cable is a bit awkward because it's a 'J' type which means the right side is shorter than the left. Built in controls for volume, pause/play, and a microphone for any Apple/Android device. Sweat and water resistant, plus a 2 year warranty of protection from Sennheiser.