I do site-to-site computer/network repairs and installations so I drive around a lot and have to stay in touch with dispatch and other technicians. This headset picks-up my voice just as well, if not better, than the phone itself. The mic doesn't need to be really close to my mouth like another set I tried. In fact, it can dangle around my shoulder and it still works fine. On top of that, there's no tin can sound to it at all.I don't know why the editorial review says you can answer and end calls with the button by the mic. It's just a mute button. Kyocera's own web-site says so and doesn't mention any additional features. To answer incoming calls, I just say &quot;yes&quot; on my Kyocera 2235. The 2235 isn't listed as a compatible phone but that's what I use it with.