The DR-5 Dr. Rhythm Section is an innovative concept in rhythm composers. Designed like a guitar fretboard, it features a programmable backing band including bass, drums and keyboards. 256 16-bit percussion/instrument sounds, 64 drum kits (48 Preset + 16 User) 400 patterns (200 Preset + 200 User); 20 songs External Pitch function for triggering the internal sounds from a guitar monophonically 4-track Composer, MIDI In/Out for interfacing to external devices Guitar In with built-in Tuner and Amp Simulator. Comes without 9v power adapter. Manual is easily downloaded from internet. Prefer pick up but will post free at buyer's risk.