The product does exactly what it should. I can turn my switch without problems one of 3 connected optical sources to the output. Processing is fully OK. You push with your thumb and forefinger together the two jaws and can then switch. After switching the switch snaps. If a signal is illuminated via the respective switching position, a red glow and then displays the signal. I have tested different Toslink cable. All cables snap easily and the contact is always given. Therefore 5 of 5 stars - buy recommendation!