A:AnswerYes. It is a headphone with a mic. It can work on any system that uses a combined jack for sound and mic. PC, Xbox, PS4. Xbox One X is the same as Xbox One and Xbox One S, except its faster.
A:AnswerYes works just like a headset no one else can hear you. Only the other players in your group if your playing an online group game. If your playing by yourself only you can hear it.
A:AnswerNo, you don't need an adapter for the current models on the Xbox Controller, if you have the older ones you will need one. And this doesn't come with one, but you can easily mute yourself and lower the volume with a small tool on the cord.
A:AnswerOlder xbox one controllers require an adapter (sold seperately) to allow for 3.5mm headphones such as this one. As long as you have 3.5mm port, yes, these will work with xbox one.
A:AnswerHe has to make sure the button on the cord is turned upwards/on. If that still doesn't work it could be his controller itself which has happened to me before the inner piece sucks on most of them or he just had a faulty headset and should swap it immediately. if the second headset still gives him issue I'd check to make sure the controller actually works.
A:AnswerThanks for your inquiry! Yes, the Recon 50P is wired with a 3.5mm jack and will work with any device that supports 3.5mm headsets. Best Regards!