The Roland Micro Cube Battery Powered Amp with COSM and Effects gives guitarists a genuine Roland Cube amp in an ultracompact 7-pound package. And when you're doing live gigs, you'll love that it runs on batteries. Despite its tiny proportions, the MicroCube packs a big punch and comes with 6 DSP effects, 7 COSM amp models, and a new Digital Tuning Fork--giving guitarists everything they need for killer tone on the go.