I purchased a TSU300 + RF extender and docking station in the US and saved a lot of €. Easy for me as I was working there at the time, I am now back in Europe. I have failed to find a US site that will ship to Europe. Everyone I have tried and it's many, for other electronic items only ship to US and Canada. Even if you are there on holiday, the sites only accept US or Canada credit cards, they do not accept international credit cards. If you happen to be in the US staying with a friend, just get the friend to order the pronto.
Changes US/Europe 1. You will need to get a new power adapter, cheap at €15 tops, or a 230V to 115V converter 2. RF, it's simple, US pronto uses different frequency to talk to it's optional the RF extender than the Europe models. Nothing got to do with the end equipment you wish to control. 3. If you plan to use an RF extender, make sure you purchase it with the remote or remember to purchase a US one for a US pronto or a Europe one for a Europe pronto
FYI FCC part 15 rules 300Mhz-1Ghz relate to emissions and immunity testing for class A or B ratings and is just one segment, 30Mhz-300Mhz is another etc, not relevant to actual transmission frequency used, that is determined by what relevant section of the spectrum in unlicensed for use, ie a small band in the 400Mhz segment is unlicensed and is used by garage door openers, RF remotes, pronto and anything else with small transmission powers, typically sub 100mW. 2.4Ghz is also unlicensed, hence microwaves, wireless access points, certain digital house phones use this spectrum band etc