SENNHEISER ELECTRONICEnergize your music experience while you focus on your workout. Lightweight, ergonomic design ensures comfort and security Ear hooks provide extra hold to give you maximum freedom of movement while ex ... moreercising Sealed in-ear-canal design offers improved blocking of outside noise so you can stay focused Sweat- and water-resistant for maximum ruggedness and durability Inline smart remote and mic on the cable are compatible with most iOS devices SteriTouch antimicrobial ear adapters Para-aramid-reinforced, oval-shaped cable provides superior strength and reliability while resisting tangles Includes convenient storage pouch, cable clip and S/M/L ear adapter set Specs: Frequency response: 18Hz-20kHz Sound Pressure Level (SPL) : 120dB @ 1kHz/1 mW The best fit for your fitness routine. Sennheiser's OCX 686i Sports Earphones were made to deliver incredible audio while you concentrate on your sets and reps. The high-output drivers deliver amazing sound quality at any volume, and the innovative in-ear-canal design and cable routing work together to keep unwanted background noise to a minimum so you'll be able to enjoy your favorite music at the gym without distractions. Furthermore, the lightweight, ergonomic design ensures that the OCX 686i sits comfortably and the ear hooks provide extra hold to keep the earphones secure during even the hardest workout. Conquer your next workout with Sennheiser! Order your OCX 686i Sports Earphones from Brookstone today!