I have a G4. Its really nice if you go on long trips as you can talk to each other. We use it to keep a watch in the large cities or if we are needing to stop. I don't really see the big deal with talking to the wife while riding....but to each their own. On the g4 I usually have my ipod hooked up to it and if she needs to talk it will kick over and pause my music...then when she is done it will automatically kick back over to my music and continue playing. The quality of tunes isn't exactly the best but it does give some background music without deafening you or canceling out all external noises. The range is great. Even in larger cities we can get about 20 car lengths apart and not have a problem at all with hearing each other.