Any idea whether my MC6 will work with an Electro Harmonix or Ditto looper?

The 1440 Stereo Looper by Electro Harmonix says it has “loop synchronisation to external clock”

Besides not knowing whether that means I can control anything else, I also wanted the smallest looper I could find then use the MC6 for the buttons.

I can’t seem to find anything. Perhaps I should just try Logic Pro’s Live Loops though, despite being called Live Loops they’re not great for actually performing live.