Korg SoundLink SL-100M is a professional-grade MIDI controller designed for use with music production software. It has been used by many professional musicians, producers, and DJs, including Skrillex, Deadmau5, and Diplo. The controller features a full-sized keyboard with velocity-sensitive keys, a touchpad, and a variety of knobs and buttons for controlling various parameters. It also has a built-in arpeggiator and a sequencer for creating complex rhythms and melodies. Additionally, the controller is compatible with a variety of software, including Ableton Live, Logic Pro, and Pro Tools.