This Product is both an entertainment center and a teaching/training tool for bass players. It includes 70 loops called Performance Presets which provide instrumental accompaniment for many musical styles and teacher loops which help bassists develop and refine basic techniques. FEATURES - 30W 10" Fender Special Design Speaker High-frequency piezo horn Tilt-back cabinet Headphone jack 70 Performance Preset loops Instrument backing tracks in various styles Teacher loops Transpose and tune function Tempo control Volume control over each instrument in loop Preset loop model and effect controls 8 bass amp models 18 effects 3 reverbs 28 second phrase sampler Internal MIDI synth Storage for 64 MIDI song files Tuner Method book Speaker out RCA aux in Line level 1/4" out MIDI I/O Rear panel teacher input jack Footswitch jack Black carpet covering Black metal grille 15"W x 17"H x 14.5"D 33 lbs.