Alesis V49 MKII, USB MIDI Controller Keyboard, 49 Velocity-sensitive keys, 8 Velocity-sensitive trigger pads with note repeat and full level function, Arpeggiator with 6 modes, Tap tempo and adjustable time division, Gate and Swing, 4 Assignable knobs, Pitch bend and modulation wheels, Octave selector switch, 6.3 mm jack sustain pedal input, USB 2.0 (bus-powered), Dimensions (W x H x D): 812 x 244 x 94 mm, Weight: 2.75 kg, Incl. MPC Beats software package with 7 expansion packs and 60 free lessons from Melodics