Ultimate Ears has introduced its new MetroFi 170 and MetroFi 220 Earphones. Both new earphones feature a single-driver, in-ear design, with the 220 featuring a titanium-coated speaker for more detail in the higher frequencies compared to the 170. In addition, both earphones feature a red-colored right earphone to help distinguish between left and right buds, and include three sizes of silicone ear cushions, as well as a carrying case. For iPhone and Fall 2008 iPod users, both the 170 and 220 will be available in vi models featuring an integrated microphone for calls and remote button for call management and basic playback control. Ultimate Ears’ MetroFi 170 and MetroFi 220 Earphones will be available in February for $50 and $80, respectively; the vi models will sell for $10 more.