I had reported in my earlier review that the static beeping sound that persisted, no matter what has now gone away since I upgraded to the Cowin SE8

I primarily use these with video-games and my old pair would lose connection and beep in my ear just by walking from the living room to the kitchen

Mic is unusable and when I turn on the noise cancelation I hear a strange beeping that can only be compared to Chinese water torture when nothing is playing

The weight, clarity and range are okay, although weight and range are not as advertised, however, the thing that has continually bothered me is the static beeping sound that persists, no matter what

Used 6 times , they started making extra beeps, and then died

And while listening, I noticed an annoying intermittent beeping sound that was worse on the noise cancelling setting that would not go away

I had the same issues with the annoying beeping/static feedback