I was informed by friends of a constant humming noise coming from my mic. I played feedback from my mic and I could hear it as well. headset is a sades brand not sure on model, ive had it for a few years now. I found out while messing around that if i touched the metal parts of the case the humming stopped. Im playing on a desktop ive had for years and its plugged in the same way. from what i read it sounds like a grounding issue but it just doesnt make sense. Any suggestions would help.