US vs EU vs UK spec

I have been asked what the differences are between US and UK spec Tempests. Apart from the plugs is there any difference?

Could someone in the EU buy a Tempest° from the US without issue?

they have a different radio frequency to communicate between hub and tempest.

Thanks, so the US spec would not be suitable in the UK or EU.
Presumably the UK and EU would use the same frequency, the only difference being the plugs?

pretty soon they will open shop in Europe, so you could order the correct one for you region.