Yes, it works. Sound quality is acceptable, not great but not as bad as some Bluetooth headphones I've seen. They are definitely comfortable to wear. The main problem is related to the design of the back of the head. Personally, I don't have a lot of hair on my back, so these headphones tend to slip off when walking. I have to constantly adjust it while walking, which can be annoying. They also don't adapt at all. So if your head is small or larger than average, this probably won't work for you. I would recommend just buying regular headphones and putting earbuds underneath rather than buying this product. Recommend if they ever make an updated version of this to put the charging port on the outside instead of inside the earbuds. Makes charging difficult.edit: 7/1/2020: does the headphone read you the number of the caller, but only in Chinese? I don't think it's a problem if you speak Mandarin.