The Roland TR-08 Rhythm Composer is a tribute, and very well detailed replica of the classic TR-808 drum machine - one of the most beloved and influential instrument for electronic music. The TR-08 brings the look, workflow and sound of the original to Roland's Boutique format. Key new features include added compressor, gain, tune and pan controls and 10 discrete outputs via USB. The step sequencer offers 16 steps with 16 sub-steps for programming with intricate detail. Can be USB bus powered or battery powered, and includes in-built speakers.