The M-VAVE MIDI 25-Key USB MIDI Keyboard Controller is a compact and portable musical instrument that features 25 semi-weighted keys and 8 backlit drum pads, making it ideal for creating music on the go. With 8 knobs for added control, this digital keyboard offers a variety of sound options and effects. The keyboard is powered by a 2000mAh battery and is compatible with USB for easy connectivity. The compact size and sleek design make it a versatile tool for musicians of all levels.