Portable MIDI foot controller pedal is small and exquisite, with easy-to-use 4 foot switches.
Wireless MIDI pedal with intelligent APP(CubeSuite) control, easy to operate, convenient to use.
Bulit in 300mAh rechargeable lithium battery, charging for 2.5 hours, can be used for 12 hours.
The display screen can directly feedback the commands you issued, intuitive and clear.
Compatible with Wins, iOS, Android and other platforms.
Do be prepared to do a bit of research to figure it out. There's a forum post you could Google titled “MIDI Chocolate controller with the Mod Dwarf, an introduction” which explains how it works pretty.