Call me old fashioned - I actually still use my cell phone to talk on. In fact, that's its primary function on a day to day basis. I depend upon its performance to conduct my daily business which is done from within vehicles or in noisy settings while on site. This is the ONLY headset which has demonstrated its ability to perform in all of these conditions. Of note are its stated features including noise cancellation that is actually useful, enough audio clarity so as my phone calls are not frustrating or annoying, and sufficient earpiece volume to actually conduct a conversation. None of these characteristics were consistently demonstrated by the use of the bluetooth connected headsets I had tried in the past, including the Blue Ant and Plantronics units.If you need to actually talk on your phone, this is a headset worth considering. Only 4 stars due to lack of separate volume control and rather tangle-ridden, skinny cord that this headset uses. This is a very durable and well-made headset that can withstand year(s) of daily use, however. And it's the second one I've purchased.