Originally Posted by coreyg510
Not a bad price for that model. I have heard of some issues however that it will drop connection.
After reading more of the threads on this forum and a few after a Google search, it seems there are a couple issues. The dropped calls and the call clarity when on the road or in a higher background noise situation. I do alot of traveling in my job via the car so now I'm cautious about this one. I am currently using the Jabra 250v which I love the call clarity but it gets tiresome on my ear after awhile. My trip from Cincinnati to St Louis I can't keep that thing in there. The size of the 640 really appealed to me but not with the negatives associated with it.