Roland Micro Cube GX 3W 1x5 Battery Powered Guitar Combo Amp Red Power: 3WUltra-compact portable DSP guitar amp with 5-inch speakerRuns on battery or AC power (adapter supplied) and includes carry strapi-CUBE LINK jack provides simple audio interfacing with Apple's iPhone, iPad, and iPod touch (interface cable included)8 COSM guitar amp models including JC-120 and a special mic preamp model8 DSP effects: chorus, flanger, phaser, tremolo and separate Delay/ReverbBuilt-in chromatic tunerRecording/Headphones output and stereo Auxiliary input for CD players, etc.