The Arctis 9X is a Bluetooth-enabled headset!
Even better, the 9X uses a dual-wireless system. What does this mean?
It means that the headset connects to the Xbox via wireless connection, & you are still able to connect to a mobile device via Bluetooth.
How does that work? (ﾉ◕ヮ◕)ﾉ*:・ﾟ✧ mAgIc *~