this is an igloo cooler with 2 6 1/2 inch marine speakers and a 300 watt amp. all powered by a small gel-cell battery. there are LEDs inside the cooler that light up by remote. This was a proto type for some friends to float down the river. Cooler is not intended to hold drinks but is still completely waterproof so it can hold towels sunscreen and cell phones. It has a built in charger the recharges the battery when not in use.