The Shure SE310 is a sound isolating earphone. Based on an updated E4, the SE310 continues to build on the earlier two models, refining the Shure sound signature and providing a better build. Regardless of being the last single driver, balanced armature earphone in the Shure line-up, the SE310 holds it own next to the more expensive IEMs Shure offers. Comes in both white (silver) and black.