Hear purpose of buying = wireless music Ergbnis = extremely limited range and even if you are sitting right in front of the PC (50cm) is to achieve a stable Siganlübertragung consistently. It comes after an indefinite time repeatedly to short interruptions and sometimes distortion / false reproduction of the sound! The icing on the cake of poor is also confirming that it does not support APTX. The Audiosingnal is always dull and from poor to mediocre quality! (No CDqualität) 2 stars instead of 1 because there are even worse Blutoothadapter, yet even this is not to be used here