Note up front that all three Backbeat earphones look and feel very similar to one another. The plastic and silicone rubber earpieces take gold and black design cues from Altec’s 2008 Expressionist and inMotion speakers, connected to symmetrical gray fabric cables and iPhone-friendly headphone plugs. They all come with clear rubber tips in multiple sizes, and feel solid: assuming that you like the gold accents, they do have a serious, generally…
