We had FRS radios for a while, but now we spent a couple of extra bucks
and got GMRS/FRS radios. They're more expensive (about 15.00 each) and
you are supposed to get a licence from the FCC $75.00 for 5 years.
The GMRS channels are 1 watt rather than 1/2 watt, and you get another 8
channels (15-22). When we're on the GMRS channels and have an issue, I
get all officious and ask whether they have a licence. If not, I use my best
'official' tone of voice and boot them off the channel. Works every time
Range of of a GMRS radio? Good, not perfect reception by the Haunted Mansion
and our friends were on the monorail platform at the TTC.
They're cheaper than a cell, and I don't worry that much if one gets lost for
a while (we've got them back every time but once)..