The Speaker Event Cooler is perfect for your next concert, sporting event or beach trip. It features a zippered leak-proof main compartment holds up to 12 cans. Features two speakers that are compatible with most iPhone®, iPod®, iPad®, smartphones, tablets and mp3 players. Zippered front pocket sized to hold most tablets and smart phones; Slash pocket inside holds battery box that uses three AA batteries (not included). One side mesh pocket. Adjustable shoulder strap. Insulated PEVA lining.