sennheiser ocx 686i sports earphones are an excellent choice for gym workouts. these sennheiser sports earphones have a durable construction.the sennheiser ocx 686i sports earphones are a perfect fusion of performance, sound, and comfort for people with a passion for sport. they feature a lightweight construction that provides supreme comfort for extended wear, without causing any irritation to the ears. these sennheiser sports earphones feature an innovative ear canal design that pairs up with the cable routing to help reduce unwanted background noise to a minimum. furthermore, the high output drivers deliver a detailed and powerful sound performance. these sennheiser earphones have ear hooks that provide a snug fit to give you maximum freedom of movement during your workout. these earphones are compatible with leading edge apple devices. available in a green finish, the sennheiser ocx 686i sports earphones energize your music experience during workouts. key features for apple inline smart remote and mic on the cable are compatible with most smartphones and portable players maximum ruggedness and durability sealed in-ear-canal design for improved blocking of outside noise antimicrobial ear adapters ergonomic ear clips for optimal wearing comfort and a secure fit asymmetrical (ocx 686i) cable provides superior strength and reliability withstraight plug for ocx 686i version oval-shaped cable ensures a tangle-free listening experience and reduced cable noise convenient storage pouch and cable clip included sporty design the sennheiser ocx 686i sports headphones, with their ergonomic design, give you the maximum wearing comfort while working out. be it uphill running or biking; these headphones stay in place during any intense activities. the sealed in ear canal design offers improved blocking of outside noise for a distraction free workout.