I can pick out every little note and can even hear things I have never heard before like pages being turned in some classical music or guitar strums and voices in others. In less than twenty four hours I was answered by a very pleasant lady called "Sunshine". My 3rd pair. There were two Toslink optical ports on the rear of the receiver, now there is only one. But it turns out that it requires setting up an online account with Xiaomi in order to activate the software on the device (so much for no intrusive online gathering of data), and after doing that it failed several times to pair with the Bluetooth on my phone, so what I was left with was a couple of cryptic displays on the device, in Chinese, and a useless activity tracker. I cant vouch for their durability as of yet however, as its been less than a month since Ive been using them. It is just so sweetly engineered, like a BMW, or a Patek Phillippe watch. On trouve également un câble USB pour la charge, un manuel de garantie et une notice en 3 langues. although these slippers are pretty, colour is very nice, they are warm when put on, the main issue I had with these, though a size small 5-6, my regular shoe size for slippers, they were too long, and there is absolutely no ankle support. This looks much nicer than I expected.