Building upon the success of the Beatstep Pro and KeyStep the Arturia KeyStep Pro is a powerful 4-part polyphonic sequencer with a great feeling 3-ocatve keyboard with velocity sensitivity and aftertouch making it well suited for producers musicians and artists looking to sequence and perform musical ideas in an expressive and articulated way. With an ever-growing collection of modular gear analog synthesizers drum machines and software instruments the KeyStep Pro allows you to perform and control in perfect unison. There are four independent sequencers controlling whatever synth module or drum machine you want. The sequencer features 16 patterns per track and each pattern can be up to 64 steps long and contain 16 notes per step. Up to 16 patterns can chained together to create a whole song or sections of a live set. What s more the onboard scene memory takes snapshots of all the sequences within a pattern letting you instantly switch between sets of sequences. Everything is saved to a project which can be loaded duplicated tweaked edited and re-saved again. There are 4 CV Gate and Mod outputs 8 dedicated drum Gate outputs Clocks MIDI in 2 MIDI outs a solo metronome output sustain input to let you get expressive with your performance and USB for easy power and DAW/softsynth control. If you like working in the box the KeyStep Pro easily sequences and arpeggiates your virtual instruments syncing everything with your software studio. Switch to the dedicated Control mode to control parameters in your favorite synths and effects. This bundle includes HPC-A30-MK2 Closed-Back Studio Monitor Headphones offers a solution for experiencing rich and natural sound when listening to music through a mobile device or monitoring a podcast on your computer. Plus a piano-style sustain pedal with a high-quality rugged build. The unit features switchable polarity making it compatible with most electronic keyboards that have a 1/4 foot-switch input jack. Box Contains Arturia KeyStep Pro Keyboard with Advanced Sequencer and Arpeggiator USB Cable Power Supply Sustain Pedal 1-Year Warranty Closed-Back Studio Monitor Headphones 1/4 Adapter 1-Year Warranty