Adventure Series is the culmination of two decades of 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 magnesium unibody with aluminum faceplate for strength, durability, and style. Proprietary extend range 6.5mm Micro Driver with Precision Surface Tuning delivers sonic accuracy with extended bass, ensuring audiophile fidelity in your listening. IPX weather resistant - providing protection against spraying water and adverse conditions for everyday use, rain or shine. Plus AWACS Reflective -Adventure Warning and Control System - gives you better visibility in low-light and adverse conditions with a reflective, replaceable cable featuring a 3-button control system.