Feature:1. Battery supplied portable MIDI controller with wireless function.2. Multiple device connections: wired, wireless, wireless direct, wireless adapter connection, MIDI OUT connection.3. USB-C port for connection and charging.4. Two power supply methods: USB power supply, battery power supply(built-in 780mah lithium battery).5. 25 velocity sensitive piano keys, 1 distributable 360 degree rotary knob.6. Powerful, with arpeggios, intelligent scales, chords, and other functions.7. 3.5mm continuous tone/expression pedal interface.Specification:Features:Battery supplied portable MIDI controller with wireless function.Multiple device connections: wired, wireless, wireless direct, wireless adapter connection, MIDI OUT connection.USB-C port for connection and charging.Two power supply methods: USB power supply, battery power supply(built-in 780mah lithium battery).25 velocity sensitive piano keys, 1 distributable 360 degree rotary knob.Powerful, with arpeggios, intelligent scales, chords, and other functions.3.5mm continuous tone/expression pedal interface.Sustain pedal port and MIDI out port all in one.One button to control Sustain, Modulation and Pitch up/down functions.Smart Chord and Scale feature make you get inspiration easily.Compatible with Wins/MAC/IOS/Android and other systems.Compatible with all digital audio workstation.Specifications:Material: ABSKeys: Twenty-five velocity-sensitive keysKnobs: 1 assignable endless 360 degree encodersOutput: 3.5 Sustain pedal connection port; USB-C port; Wireless connection with Wins/Mac/iOS/Android; Wireless Midi Out Function (Need extra wireless midi device)Power: 780mAh battery supplied or USB-bus-poweredItem Size: 348 * 105 * 38mm / 13.71 * 4.13 * 1.50inItem Weight: 450g / 15.88ozPackage Weight: 614g / 21.68ozPackage Size: 38.5 * 14 * 6.7cm / 15.16 * 5.51 * 2.64inPackage List:1 * MIDI Keyboard1 * Type-C Cable1 * Manual (English)Package List:1 * MIDI Keyboard1 * Type-C Cable1 * Manual (English)