Newbie: Help please - What Garmin Rino products can i use in New Zealand?

I wish to purchase a set of Garmin Rino 2 ways for use in back country snowboarding. I live in New Zealand and i wish to not only use them here but would like to be able to take them abroad.

Can anyone tell me if -

a. I can buy a particular model that i can use in both NZ and abroad in most(?) other countries and

b. Where to purchase these from i.e. Internet sites?

Many thanks in advance.

THe FRS/GMRS mopdels are not legal in New Zealand. There is a UHF Citizend band there.