A:AnswerThey can be used for a gaming console(I've done it). Only thing is online chat can be annoying for others in the party. They told me they can hear themselves talking from my end. My guess is the built-in mic is picking up the sound from the earcups. But if you're playing without friends in a chat, these are great for games with their powerful sound.
A:AnswerYes! But not wirelessly, and they aren't as loud as you'd like. Voices of Party Members will be way louder than the game. You can use the cord that came with them OR any cord with a mic attached and you're good to go!