Kirk,
thank you! take them along to CAA. you may find that they are handy to have while driving along with the "pack". that's the reason we will need a pair.
if you test them out and find they don't do much, hand them off to some kid at one of the local stops as a toy. if they work well keep them for your own use or if you feel you really don't need them and they are doing a decent job then yes hand them off to Valk he'll bring them to us. but if they're good why not keep them yourself so you can talk with the other drivers while on the road? if you send them our way we happily accept them too.

Pizza guy I agree it's a crap shoot on which ones. I just want that we can hear when to stop and not become left behind! I passed up a new set at a garage sale, Unidens I think.