Fender Mustang Mini 7-Watt Guitar Amp This 7 watt digital amplifier can be powered by an AC power supply (included) or six CC batteries Loaded with features including 24 onboard presets built from eight digital amp models and a dozen digital effects. Built-in chromatic tuner too! Available effects include: Chorus, Flanger, Phaser, Vibratone, Vintage Tremolo, Octave Down, Small Room Reverb, Fender '65 Spring Reverb, Stereo Tape Delay, Tape Delay + Room Reverb, Chorus + Hall Reverb, Vibratone + Room Reverb. Stereo headphone output for silent practice or line out, USB connection for FUSE application and digital recording output.