Boss DR-880 Dr. Rhythm Drum Machine, a powerful rhythm programmer that includes drum, percussion and bass sounds from the Roland SRX library. This rhythm machine also includes a collection of original waveforms. Some of its features include: "EZ Compose" function to create patterns without note-by-note programming. "Groove Modify" function to apply different rhythms to patterns. Direct input for guitar/bass with COSM amplifier models and multi-effects. Independent compressors and equalizers for bass drum and box. Possibility of separating the bass drum and box sounds to send them to a DAW. The DR-880 is a versatile tool for creating rhythms and practicing instruments, offering a wealth of sounds and functions to explore.