House of Marley Bag of Rhythm
From the Editors of Freeskier:
House of Marley’s portable music player employs sleek design, and its quality sound makes heads bob to its thumping beats. Beach, pool, party, wherever, its twin 4.5-inch HD woofers, one-inch tweeters and 40W amp bump clear highs, mids and thunderous lows. It can run on D-cell batteries and charges your iOS device too.
The Cons: Weighs 15 pounds, so it’s not the most portable.