Roland TB-03 Boutique Sound Module, based on TB-303Realistic recreation of the iconic TB 303 Bass Line synth Retains the sound, character, and user interface of the original TB 303 Hands on control over expressive parameters, including cutoff, resonance, envelope mod, decay, and accent New features not found on the original TB 303, including four digit LED display, overdrive and delay effects, MIDI, fine tempo control, and additional functions for pattern creation Programmable via classic Pitch, Time,