Body Glove Earglove Contour - 2.5mm For all-day wearing comfort, the speaker lays over the ear, rather then in the ear. You get an exceptional, in the ear sound quality in an over the ear design that's easy to wear. Adjusts to fit the right or left ear. Includes the answer/end button and volume controls in one simple pod. Compatible with all phones that have a 2.5mm jack