High Sierra Groove Back Beat Ipod Day Backpack Wired for iPod compatibility. Large front-load main compartment and easy-access top-load center compartment. Convenient, easy-access zippered shoulder strap pocket has a 30-pin connector that is compatible with any iPod (third generation and up); integrated headphone access port. Deluxe, multi-pocket organizer with removable key fob. Reliable, integrated Fibertronic&#8482 switch controls volume, track advance, and pause.