as "audiophile grade" wiring device. Nor UL approved. UL listed, they list , they don't approve. And, did UL test and list with the nomenclature "audiophile grade", since there is no such listed products in UL standards, audiophile grade. Words mean something in NEMA and the electrical industry, not on audiophile planet. http://www.musicdirect.com/products/images.php?i=-1&p=66768&h=83820