Seems strange they will both work as the prongs are quite a bit closer on the more basic device.
But you clearly know what you are about, many thanks.
As for the Voltage, if I remember my schooling the US is 120V and we are 230V. My guess would be all our stuff will work or charge up but may do more slowly. My Laptop will work as normal, at least according to the manual and I'm now going to see what stuff if any will charge through it's USB port.