I bought a pair of Blue Ant units and we used them recently. Mine stopped working on the second day of a four day ride, I felt dudded until we got back home and it started working again.
Hard to hear the better half as well, now some would say that's not a bad thing.
Can you 'pair' this unit to other models/brands?
If not I might be in the market for a second unit $$$. (after the CC me thinks)