Our products are class-compliant USB MIDI devices. You can connect multiple USB MIDI devices, including MIDI controllers, synths, and our pedals, but the system needs a single USB host to route messages between all of the devices. For the studio or laptop-based performances, the computer acts as the host. A tablet or smartphone with MIDI routing software can also be used. For the iPad and iPhone, the Lightning to USB Camera Adapter will give you a USB port that you can connect to a USB hub.
Several companies make standalone USB MIDI hosts that allow you to set up a hardware-only system with no computers, smart phones, or tablets involved. See this page for a list of supported MIDI hosts.