If you're anything like me, you use a headset for numerous different things during the working day. Speech-to-text software is important to me, and I also listen to music and watch video during the day. If I'm working in an office with other people around I'll use a headset so as not to disturb them.
Plantronics Voyager Focus UC Bluetooth headset review at ZDNet.com
Plantronics Voyager Focus UC Bluetooth headset review at ZDNet.com