MIDI Controller Description Features: Battery-supplied portable MIDI controller with wireless functionality. Multiple device connections: wired, wireless, direct wireless, wireless adapter connection, and MIDI OUT. USB-C port for seamless connection and charging. Two power supply options: USB power supply or built-in 780mAh lithium battery. 25 velocity-sensitive keys and a 360-degree assignable rotary knob. Enhanced functionality with arpeggios, intelligent scales, chords, and more. 3.5mm expression pedal interface for continuous tone adjustment. Sustain pedal and MIDI OUT port combined into one interface. Single button for controlling Sustain, Modulation, and Pitch up/down functions. Smart Chord and Scale features to easily inspire creativity. Compatible with Windows, macOS, iOS, Android, and various other systems. Works with all digital audio workstations. Specifications: Material: ABS Keys: 25 velocity-sensitive keys Knobs: 1 assignable endless 360-degree encoder Output: 3.5mm Sustain pedal connection port USB-C port Wireless connection compatible with Windows, macOS, iOS, and Android Wireless MIDI Out Function (requires additional wireless MIDI device) Power Source: 780mAh battery or USB-bus-powered Item Size: 348 x 105 x 38mm / 13.71 x 4.13 x 1.50 inches Item Weight: 450g / 15.88 oz Package Weight: 614g / 21.68 oz Package Size: 38.5 x 14 x 6.7 cm / 15.16 x 5.51 x 2.64 inches Package Includes: 1 MIDI Keyboard 1 Type-C Cable 1 User Manual (English)