Do you use a 2-way radio while riding with others?

What kind do you use, and what do you like/dislike about it?

Do you use a helmet mounted radio like the Chatterbox? or a handheld type FRS/GMRS?

Do you use helmet speakers/mic?

Do you use the VOX function of the mic?
and does surrounding noise/engine noise screw up the VOX function?
or do you use a handlebar mounted PTT button?

What brand/model do you use, (Radio, and/or, speakers/mic)?

What kind of range do you get?

That's about all I can think of to ask right now, but any other info or comments are welcomed.