Westone 10032 Linum Estron BaX Earphone Cable - 50" (Black)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. T2 Connector: Designed and patented by estron a s. The focal point of the T2 connector system is minimum wear on the socket part, which ensures the longest possible product lifetime for earphones and IEMs.