The sound quality is quite good ansich. Beautiful sound and powerful bass.
But every touch of the cable is transferred directly into the ear. To this is added that the cable of the right Ohrhöhrers is longer and is long out behind the neck. This scrapes the cable length by the collar and transmits permanently annoying sounds into the ear. In addition, any noise in the mouth is (eating, chewing) also transferred directly into the ear. Total annoying but apparently common in ear's.
Update: In the meantime, the cable directly at the plug has a loose connection and the headphones are therefore no longer available. This confirms the poor build quality of this product.
Hands off !!!!