Roland AC-33 30-Watt Battery Powered Black Portable Acoustic Amp

30W (15W + 15W) of natural, stereo acoustic sound through twin speakers Runs on AC power or eight AA batteries (accepts rechargeable NiMH types) Dual-channel configuration: Guitar and Mic/Line Reverb, chorus and new ambience effects Advanced anti-feedback function Phrase looper with 40 seconds of record time Stereo AUX input Headphone output Built-in tilt-back stand Removable battery cartridge for easy battery replacemen