I have now tested the headset in detail but returned there at the end again. I had unfortunately always crack a short or small Verbindungsabrüche. The latest firmware I have been playing, but brought no change. Enweder it was just a defective headset on or there were problems with my router or DECT phone ??? Otherwise, as far as the quality of the product, it was in perfect condition and comfortable to wear. If that had not been cracked I would also give 5 stars.