The Koss UR10i on-ear headphones are a new portable model that offers maximum sound quality in a comfortable lightweight design. Today's music lovers want lightweight on-ear headphone that reproduce their favorite recordings, no matter where they go. The UR10i combines the very best in sound, with the convenience of an in-line microphone. The in-line microphone offers easy communication access, so you can stay connected with others. The adjustable headband allows for a custom fit for any head-size. Built to last, the UR10i on-ear headphone is covered under the Koss Limited Lifetime Warranty.