Sound Cooler Black/Grey. Keep your sound connected and food and beverages cool with this clever cooler. Done in durable 600d polyester, this heat sealed PEVA insulated, 24- pack cooler comes complete with speakers! Simply plug in your MP3 player for music anytime, anywhere. Cool grey accents give it a fresh look, and a quick-access fastener loop pocket on top makes it easy to get to everything inside. A side mesh pocket a