I bought this product so that I could talk on my mobile hands-free, while driving a variety of noisy machines. It has proved to be excellent. Everyone can hear me very well when I speak, and I can hear them perfectly. This is in stark contrast to some other devices that I tried before. It is charged by a USB cable from the computer, and I have only charged it once in 10 weeks, although I have not been using it every day. The volume is easily adjustable, and its good battery performance means no annoying wires in your vehicle for power. One note of caution is that it may get uncomfortable if you wore it all day, but none the less, I would highly recommend this headset.