The headphones Amazon are mE hardly encountered a price for money. The sound can be compared very well and with high quality in ear headphones known brand manufacturers, which move in the price segment around the 50 euros. The ribbon cable tangled hardly and the voice quality when making calls is also very good. Certainly the ear inserts are somewhat difficult to replace, but that comes with other in-ear headphones also. In my view, these headphones are very good and can therefore not fault.