Heya, I've had the MW3 Bravo headset for a while now and today I was using it left for 5 minutes to get a snack and when I came back I had no sound. I have no clue what the problem could be. When ever I hold down the power button to power it up I hear the initial beep for the power up but nothing else. Usually its the first beep and then a double beep and I have sound. I've searched around for help but I can't find any. Anything would be greatly appreciated. Thanks