Bellino Sound Cooler (Black) Keep your sound connected and food and beverages cool with this clever cooler This fully insulated, 24-pack cooler comes complete with speaker Simply plug in your mp3 player for music anytime, anywhere. cool grey accents give it a fresh look, and a quick-access velcro pocket on top makes it easy to get to everything inside. A side mesh pocket and dual front zip pockets hold incidentals. its a party in a bag required 4 aa batteries (batteries not included. prop 65 compliant.