Yeah, also, sometimes my volume buttons are not controlling my headphone, the headphone that I'm using and is the only thing producing sound at that time. It takes some time but you'll learn that you need to set the sound output differently in the Windows taskbar itself. And then later of course, you need to set it back because you don't want all sound to go through the headset you just wear while in a meeting and put down as soon as you end a call...