I purchased this product because I spend a lot of time on conference calls using my cell phone. A headset allows me to use my laptop simultaneously with phone conversations. Also I find the single-ear bluetooth devices uncomfortable. I have some nerve damage in my left forearm, so holding up a cell phone to my ear for more than a few minutes becomes painful. I prefer an over-the-head style and I have previously had good results from wired Plantronics headphone products. I find these headphones easy to pair with my cell phone, but the volume controls are difficult to use on the ear piece. Despite my constant tweaking of the volume controls, I can never quite get the sound at the correct level in my ears while being able to let the person I am talking to hear me. Also on every call, I hear popping sounds in the background which is very annoying. I am not sure if the other people on my calls hear these popping noises too. They are moderately comfortable, although after an hour or so they feel tight on my head. They are adjustable as far as the height but not the width of your head. Since I am short and have a small-boned frame I am probably smaller that the average user, so I am not sure how well these will fit the average person.