If anybody could hear me with it - I would love it. Unfortunately, they can't. I have tried this with my Verizon CDMA Razr and Cingular Blackberry 7290 - the Razr provides slightly better performance, but still not usable.The headset wears great, pairs nicely with the devices and I can hear fine. But the people I have called can not hear me at all in my car and barely hear me when I call from a quiet room. It is going straight back.