Often radios are a pain...especially if used by a person with not a lot of sense. Still, they can be a lifesaver or at the least a convenience.
Ear buds/speakers-in-helmets and voice activated mikes don't work. I know several people that have tried several different methods/configurations of that setup. They gave up. On a street bike they may have a place..but not on a dirtbike. imo and all..
Mine is a gmrs unit. Not a whole lot better than frs. Besides, you have to have an fcc license to use the gmrs. (Oh yeah. I got one. Sure. You bet.)
p.s.
Before I said, 'WHAT!?', I said (on my way up a trail), 'I'M BUSY!!'
As long as they are used sparingly, and correctly they're a big plus!! The delimiters stated make them useful about 20% of the time. :(