This is a high-quality MIDI-compatible replacement/upgrade footswitch for dual-function footswitches that use a TRS cable. This unit provides MIDI In/Thru jacks for full integration with your MIDI control chain. Both amp functions are controllable via MIDI program change (PC) and MIDI channel change (CC) commands. Support for both MIDI CC and PC commands Configurable MIDI channel (1-16) via internal DIP switch MIDI Thru function support for chaining to other devices Function A/B foot switches Blue/Orange status indicator LED's Memory feature restores switch on/off states at next power-up Heavy-duty diecast aluminum enclosure Rugged Glimmer Brown Sugar powder coat with UV printing Premium quality jacks and switches Hand-made in the USA Dimensions: 120 x 94 x 33mm (1590BB) Requires 1/4" TRS (stereo) unshielded 2-conductor cable (preferred) or instrument cable (not included) Requires standard 9VDC center-negative pedal power (not included) User Guide: Click here to download