The Roland CUBE Street EX brings several different amplification applications together in one easily handled combo. Use the CUBE Street EX for vocal microphones, guitars, keyboards for amplification or as a stage monitor or PA. The CUBE Street EX features COSM amp modeling and onboard effects. Power the amp with eight AA batteries for hours of operation or with its 13V DC power supply. Whichever way you want to use it, the CUBE Street EX is up for the task.