Compact MIDI switching unit that is able to switch 6 devices with more than 128 presets. With an external foot switch, user can easily remotely control several amplifier channels and effects. The unit features aluminium alloy housing with good durability and the Lock function to ensure preset will not change during performance. It is powered by a 9V power adapter (not included). Dimensions: 120 x 85 x 56 mm. Weight: 349 g.