Monster MusicShare Headphone Y-Splitter with Volume Control/Mute for Zune (Discontinued by Manufacturer) Duraflex cable jacket and strain relief collar for increased flexibility. Rugged, compact construction ideal for travel and on-the-go use. Built-in mute switch allows quick breaks without interrupting other listener or pausing player/device. Dual volume controls enable individual listening levels. Plugs into any standard 1/8 (3.5mm) mini-headphone jack.