Runs flawlessly 1

Have ordered the part, in order to TV sound on my Bluetooth headset (Sony Er. MW600) to transfer.
The pairing went fine, the sound is OK. Again for all: You press the On / Off button until it flashes red and blue alternately. Then you can pairing.
Had only a noise in it, until I came out idea, the TV louder and making the headphones quieter. That worked then super.
Manual in English only, no problem for me, but doing better.
Long-term experience, I have not, until now, I'm satisfied. If that changes, I will nachberichten!