Roger Linn Design LinnStrument, Multi-Touch Performance Controller with USB-/MIDI-Connection, integrated Sensors captures three dimensions of each finger's movement (velocity, X, Y and Z-axis position for each of multiple touches), control Velocity & Loudness + Timbre and Pitch simultaneous, (like an acoustic instruments), sensors in rows can be tuned as a guitar, in fifths as a violin or cello or in C, D, E, F, G, A and B, useable as a LED Grid-Controller (for Drums, Samples, Clips and Loops), Special Features like Split Keyboard Mode, CC Faders Mode, Strum Mode, Arpeggiator, 4 guitar strap buttons for use with a standard guitar strap, USB bus-powered or optional Power Supply useable, Connections: MIDI-In, MIDI-Out, USB, Foot Switch jack 1/4" TRS,Power Input jack: 7.5 to 12 volts, AC, DC center-positive or center-negative, at least 500 mA, compatible with PC/Mac/iPad or iPhone, no Driver required (class-compliant), incl. Soft padded and zippered travel case and USB-Cable, Steel and Aluminum chassis with cherry wood side pieces, Dimensions: 570 x 209 x 25.4 mm (WxHxD), Weight: approx. 2.27 kg