Noble Audio, the Texas-based company specializing in high-performance in-ear monitors (IEMs) with exotic finishes, is once again embracing silicon-based microspeakers in its latest wireless earbud model. The new FoKus Triumph TWS ($369) is the third model in the Noble lineup to mate a conventional dynamic speaker a 0.25-inch (6.5mm) low/mid-frequency driver in this case with a solid-state tweeter developed by the Santa Clara-based company xMEMS Labs.