Featuring big and punchy low end, MACH 20 offers a quality soundstage and listening experience meant for any audience. The MACH 20 features a proprietary dual-driver system with single low, single mid/high. WESTONE AUDIO TECHNOLOGY An ergonomic design allows all day use, with no ear fatigue. LINUM® ESTRON BaX™ CABLE BaX is a true high end reference cable consisting of very thin and ultra-strong silver plated copper cable. BaX conveys music with precision and grace while the lightweight cable disappears on your ear, allowing you to focus on what matters most. PREMIUM ACCESSORIES Protect your MACH 20 from the elements in our custom designed crushproof and watertight mini monitor vault. Also includes five pairs each of Westone Audio proprietary foam and silicone tips to ensure the perfect seal with maximum comfort. The Westone Audio MACH Series™ combines 35+ years of engineering and performance excellence to deliver sound quality the way it was intended to be heard. Every aspect of the MACH Series™ was purposely designed for both superior comfort and sound on and off the stage. Experience music your way; the Westone Audio way and celebrate the artist in you.