M-VAVE SMK-25mini MIDI Keyboard, Rechargeable USB Controller with 25 Velocity Sensitive Keys for Music Enthusiasts

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 battery). 25 velocity sensitive piano keys, 1 distributable 360 degree rotary knob.