The Klipsch Image S4i earphones are nearly identical to their sibling, the. They provide the same comfortable fit and stellar sound quality, but also offer the added bonus of an integrated mic and call answer button, as well as volume controls and remote playback for the iPod. Call quality through the inline mic is solid, though not overly spectacular for a wired headset. At $99, the Image S4i costs $20 more, which is probably worth it for those with an iPhone. For more information, .