I received the Motorolla HS850 as a gift a few weeks ago and it works great. I'm using it for two purposes:1. With my Motorola V600 cell phone. It is clear, my party can hear me, and I can hear my party. Yes, while in the car on a noisy freeway I do have to listen a little harder, but I can still carry on a conversation with out a problem. If it's hard to hear, make sure you didn't turn the volume down. Once on the freeway, I accidentally pressed volume down instead of volume up and it was very hard to hear and be heard. Once I corrected my mistake it was good to go.2. With my Hawking bluetooth USB adapter and PC, so that I can make and receive calls on my computer using Skype. Calls are crystal clear.Buy it, try it, you'll love it as much as I do and I love my tech gadgets. :-)