Westone"s Adventure Series is the culmination of two decades experience with audio and in-ear monitors. Designed for active users, ADV creates a new category of cross-over earphones that can be enjoyed in any environment. Westone"s Adventure Series offers an Active Fit System with "Up and Over" cable routing and patented Star Tips to ensure superior fit, comfort, and retention. The Adventure Series is constructed of a lightweight, low-profile zinc unibody with an aluminum faceplate for strength, durability, and style. A proprietary extended range 6.5mm micro driver with PST (Precision Surface Tuning) delivers sonic accuracy with extended bass. The replaceable cable features a MFi 3-button Apple Control System and mic function, including volume +/- , tracking +/- , phone answer, and Siri activation. They provide superb audio quality with a swivel cable for over-the-ear or straight down fitting positions. The Westone Beta earphones are IPX-3 weather resistant, providing protection against spraying water and adverse conditions for everyday use, rain or shine. They also are AWACS (Adventure Warning and Control System) Reflective to give you better visibility in low-light and adverse conditions. Includes: Crush resistant ADV travel case, assorted eartips, wax loop for cleaning, and 2-year warranty.