I purchased this headset from Amazon about two months ago and I am amazed of the flexibilty of the use of this item. The hs820 takes cell phone usage to a whole new level. I have not had any problems whatsoever. The people that I have talked to while using this headset, when asked, could not even notice that I was not using the regular speaker. Great deal for this one. Stay away from the more expensive, less reliable (and attractive) hs850. I tried it for a week before returning due to the notorious low volume. Save $40 and pick this one up. You will not regret it!!