This cooler can chill large beveragse cans (500ml/17floz) in just 40 seconds to the right drinking temperature *you dont need to chill your beers in the home prior to going on a camping trip/festival *works with ice and 6xAA batteries *works as a trolley for up to 4 24pieces can http://motionchiller48261.tinyblogging.com/MotionChiller-Battery-Powered-Cooler-that-ACTUALLY-cools-28251930