Three Drivers - two balanced armatures and a separate dynamic driver deliver an extremely accurate listening experience with unsurpassed dynamic power Expertly Tuned - by Grammy® Winning Sound Engineer, Luca Bignardi, to deliver a precise representation of your favorite music Comfortable Ergonomic Design - the oblique angled ear fittings naturally match your ear canals. 6 sets of included ear tip sizes ensure a proper fit for all Intelligent Control Technology - in-line controls are conveniently located allowing you to control volume, select songs, and take calls. A superior MEMS microphone eliminates cross-talk and background static. PERFECTED ERGONOMICS - The oblique angles naturally align to the curve of your ears to provide a tight seal and full range of sound. 9 different sets of ear tips provided ensure a comfortable, secure fit. EXTREME DURABILITY - High-quality function matches form with a lightweight aluminum alloy body. A sandblasted textured surface provides an aesthetic appeal with fingerprint resistance while the cable consists of interior enameled copper wrapped around Kevlar fiber to greatly increase durability and tensile strength.