Features:
25 velocity-sensitive keys.
8 backlit trigger pads.
4 MIDI control groups.(4 assignable control knobs plus 4 assignable control sliders)
4 banks for different settings.
8 control buttons: CC Mod, Mod, Bank, Prog, Pitch down / Pitch up, Octave down / Octave up.
Plug and Play USB 2.0 cable, no need of driver installation.
USB bus powered - no additional power cable needed.

Specifications:
Color: Black
Material: Plastic
Operating system: Support for Win 8 / Win 7 / Win XP / Win Vista / Mac OSX.
Item size: 32 * 19 * 3cm / 12.6 * 7.5 * 1.2in
Item weight: 742g / 26.2oz
Package size: 34 * 20.5 * 5cm / 13.4 * 8.1 * 2in
Package weight: 879g / 31oz

Note:
Not support for Windows 98, Me, NT and 2000;
G3/G4 accelerator cards are not supported.

Package List:
1 * MIDI Controller
1 * USB Cable