If you’re looking to connect your Afterglow Ag9 headset to your Xbox One, there are a few things you’ll need to do first. First, make sure that your Xbox One is turned on and connected to the internet. Next, open the Settings app on your Xbox One and select System. Under “Devices,” find and select Afterglow Ag9 under “Audio & Video.” Finally, under “Audio & Video Output,” make sure that the “Use HDMI” option is selected and that the HDMI cable is plugged into both your Xbox One and Afterglow Ag9 headset. ..