A:AnswerActually it CAN be used well with a smartphone. I hook it up to a Samsung S6 using a Radio Shack converter plug easily gotten from them. Sound is superb
A:AnswerWell yes and no.
Most smart phones have one 1/8 in. Or 3.5 mm input "hole". The G230 has dual male inputs for two "holes". But depending on the app could suffice being used independently as a headphone or a mic.
A:AnswerYou will need a headset y cord to go from the separate mic and headphone plugs into a single headset plug for the XBOX One. This is not included in the box.