Roller bag for the SportsSound ULTRA portable sound system. This heavy-duty bag also fits the SportsSound ULTRA Dry-Deckside version. Retractable handle and full zipper cover to protect your valuable audio gear from the elements and those nasty scrapes and bumps. Perfect for outdoor aqua aerobics instruction where transportation of a large portable sound system is key. Large rubber wheels make it easy to go up and down curbs and easily handle door jambs and obstructions.