The housing design features selected wood chamber with a metal outer chassis, not only for the timbre using wood materials but also fusing modern design elements. Using Beyer X-EK multi-layer membranes with a CCAW low profile coil, you can now experience high definition sound with great details and a wide frequency responses. Customized for the project is a high-quality cable for extreme reliability, high resolution sound and a wide soundstage. Comfortable and Lightweight: Ergonomic in-ear designed with soft flexible silicone earbuds to make sure the headphones stay comfortably and firmly in the ear even with sweat. We stand by our products and we want you to be 100% satisfied. ONE YEAR WARRANTY makes your purchase totally RISK-FREE.