VAVE Controller,Velocity Sensitive 1 25 Velocity Sensitive Portable Usb Midi Usb Midi With 25-key Midi Portable Midi With 25 Dsfen Midi Sensitive 1 Knob With 25 Velocity Huiop Rusuo Midi Midi

Two power supply methods: USB power supply, battery power supply(built-in 780mah lithium battery). USB-C port for connection and charging. 25 velocity sensitive piano keys, 1 distributable 360 degree rotary knob. Powerful, with arpeggios, intelligent scales, chords, and other functions. Battery supplied portable MIDI controller with wireless function.