So basically when I plug this headphones in my smart phone it's completely okay, they are pretty good. But when I plug into pc they produce noise and my head goes crazy. I tried many things like check box listening to mic and stuff but still noise. I think the problem is that the headphones are set very loud like the noise I hear is the same when I plug my normal headphones and increase volume with the wheel on it. So yeah normal headphones - no noise, this headphones - noise. While plugged in smartphone - both okay