SE215 Professional Sound IsolatingEarphones provide clear sound and deep bass through a single, high-definition driver. Discrete, secure design includes a detachable cable with wireform to keep earphones in place and cables out of the way. Sound Isolating technology blocks up to 37 dB of outside noise. Includes a zippered carrying case and fit kit with selection of sleeves for custom fit. Single dynamic driver delivers clear sound with deep bass performance in a discrete, durable design. Sound Isolatingdesign featuring fit kit with a variety of sleeves blocks up to 37 dB of outside noise so you can hear the details of your music. Secure, over-the-ear design ensures earphones stay in place and cables out of the way for unmatched, long-wearing comfort. Gold-plated MMCX connector has a lock-snap mechanism allowing 360-degree rotation for a comfortable fit. Detachable cable is durable enough to withstand everyday wear, yet allows for easy replacement in case of damage.