Five stars for delivery and quality! In the evening ordered and on the second day in my mailbox. The course would be the buyer. The packaging was matched to the size of the contents. Delivery and return form were present. The latter was not required because the look, feel and function of the cables have absolutely fit. Plugging in and go! I had previously analog RCA cable for audio connection between my devices. The sound was for me back then OK. Now, after I changed the audio transmission on the toslink sounds sound more brilliant and full. The heights come better and more clearly over and the bass sound heavier. The only thing I regret now is that I do not have much earlier switched to the optical cable.