Being one of the world's smallest and lightest headphones on sale doesn't stop the Klipsch X11i from sounding amazing!FIRST RATE SOUND QUALITYPowering these miniature marvels is a full-range armature micro-driver with a tuned bass-reflex system. They give the Klipsch X11i a powerful, distortion-free sound quality that fully immerses you in the music yet doesn't fatigue or sound tinny. Given their tiny size you might be surprised by just how deep and powerful the bass sounds, too: yet it never dominates the mix.SUPERIOR COMFORT AND PASSIVE NOISE ISOLATIONThe X11i is also one of the most comfortable earphones around. Key to the X11i's comfort and sound quality are the unique oval tip buds. Coming in five different sizes, these create an airtight seal within your ear. A perfect seal means greatly reduced background noise; so you can hear more detail and don't have to turn the music up so loud to compensate. Once correctly sized and adjusted you'll hardly notice you're even wearing them, such is the comfort.QUALITY CONSTRUCTIONWhen you're spending this much on a pair of earphones you want them to be well made, and that's exactly what the X11i's are. Featuring strain relief at every connection, the X11i's are as tough as any miniature earphones can be. Thanks to their durable aluminium bodies, they also look pretty special, too.TAKE CALLS ON YOUR IPHONEFeaturing a high quality, 360 degree microphone and three-button remote, the Klipsch X11i is ideal for use with your iPhone. In addition to controlling the music and call accept, it's also compatible with voice control on selected Apple products. The directional mic helps with hands-free, crystal clear phone calls.Tiny and unobtrusive yet full-bodied in sound and sturdy of build, the Klipsch X11i are amongst the best earphones in their class.2 year limited guarantee included