SRM/V-Class High-Performance Powered Loudspeakers are a whole new tier of SRM portable loudspeakers that aren't just made to get the job done, but to get it done better than anything else with unmatched clarity, output, and control packaged into sleek, rugged enclosures. Experience the new definition of high-performance with SRM/V-Class. The SRM212ROLLBG is a rolling bag for the SRM210.