When I use my hyperx cloud 2 headset with the 3.5mm headphone jack, there is hissing/static noise in the background, but when I use the headphones which came with the package there is no hissing. I tested it with my brothers same hyperx headset and there is hissing. Also i tested it with some older turtle beach headset and it works with no hissing. I guess it is some compatibility issue with the hyperx cloud 2 or?