they sit on the head somehow, they worked for no more than a month. at first the volume control began to fail until it "went out" at all, removed it, after the plug began to fail, threw it to another (microphone), since the microphone did not work from the very beginning, it turned out not to be for long, the plastic arc has weak points at the break, as a result and there I had to show needlework, in short, they worked out their money, or rather, I painfully squeezed out the paid 180 from these See full review