A:AnswerYes, this can be achieved using the Steel Series GG Software. However, your friends must actually want to listen to the music to not mute it...
A:AnswerYes, but if you have both Xbox and Playstation turned on you'll have to manually switch to which ever one you are ACTUALLY using. For example: if you want to be in an xbox party with your friends but are playing on your playstation, you'll have to make sure to manually switch to XBOX so you can talk with your friends. Hope this helps.
A:AnswerIf the aircraft has a USB slot on the seatback screen you can get a Bluetooth adapter to which i believe these headphones can connect to. Hope this helps.