First of all, I despise the fact that the state of CA made me purchase a headset. Secondly, what I resent the most is that I didn't get the "Bluetooth" option when I ordered my new car. That being said...I did not want to spend near or over $100 for a headset that may or may not work and that I will only use sparsely as my commute is short.The HS850 is great product and a great buy due simply to the fact that "it works". I had no difficulty, pairing it up with my phone, it fits on the ear comfortably and most people can not distinguish the fact that I'm using the headset.I charge the unit once a week and have no problem with the battery or its stand-by time. Most people will note that the volume control buttons are "small" but you only really have to set it once-turn it all the way. Which is the only reason why I did not award this product 5 stars. When I'm on the phone I have to close all of the windows and turn the radio down; not because people can not hear me, rather it's because I can not hear them.Bottom line...for the price, I paid $25 including shipping from Amazon directly, you can get a better product and value.