Just found this on their website, Duh! I don't care about the midi connectors but I do like the USB connection......
So, Just as Chewie said above.
Lite:
AIRSTEP Lite is a simplified version of AIRSTEP. All wired control interfaces are removed, including the traditional MIDI interface, Relay output interface, USB interface, and expression pedal interface. The Bluetooth communication interface is retained.
AIRSTEP Lite is mainly used for wireless control. It can work in 2 modes, standalone mode and wireless external footswitch mode.
In standalone mode, Lite Bluetooth connects to mobile phones, tablets, and computers to send MIDI messages and HID messages. At this time, the connection and usage of Lite are the same as AIRSTEP, so please refer to AIRSTEP for these points.
In the wireless external footswitch mode, Lite connects to AIRSTEP as its wireless external footswitches. At this time, all control messages are sent from AIRSTEP, and Lite is only used as a wireless extension.