A:AnswerThis headset has a USB-A connector (the wide, flat connector) and most MacBooks have this type of connector except for the newer ones which come with a USB-C connector (a narrow, slightly oval shaped connector). You'll need to check you model's specifications, or look at the sides of the computer, to see if it has the USB-A connector.
A:AnswerThis headset is not for your cell or landline phone. It is for your PC to be used with Skype, Google Voice or any other app emulating virtual phone ( they call it soft phone).
A:AnswerYes. Windows 7 and 10 recognizes the headset as soon as you plug it in. I work from home and use it with a VOIP phone software to make and receive phone calls over the Internet.