I bought this for my son for his Motorola KRZR cell phone and it works fine. The H800 sync' d up quickly, it connects quickly to the phone once you hit the button and the little slider comes out, and the clarity is more than adequate. This one is actually pretty good in the wind too. We don't like the headsets that have the ear piece that goes INTO your ear, we find them uncomfortable, this one has 3 different ear hoops to fit different size ears and it sits snugly up against your ear. It's solidly built and I think this one should last 12-18 months with no problem.I've had a bunch of these headsets and none of them is perfect...not even the Jawbone. My theory is to buy genuine Motorola headsets that are 6-12 months old, buy them at half of their original price, and use them till they quit.I paid $36.99 with free shipping directly from Amazon ....and it is definitely worth every penny.