with significant hearing problems (I can not stand the noise), seeking always the gem so the keyboard quietest possible yet confirmed by the Cherry commercial service it was very quiet, this keyboard is not as quiet as the eVolution Stream XT that I already had. So I traded for a second eVolution Stream XT, which is really perfect, very low noise. quietest I had was a backlit keyboard Advance, but the build quality was terrible. Keyboard death after 3 months of use.
