When I played music for the first time, no continuous transmission of music came into being. As long as I did not think my Lumia next device, the transmission was interrupted continually. I was very surprised, because I have even a smart phone of the same brand and that must not happen, of course ... I then went on troubleshooting and tried some out. It was not long until I realized that the receiver properly worked at a new location. Then I was able to remove without problems further. I had the MD-310 is available in front of the control panel of my 5.1 system. Here occurred the transmission error. But as soon as I put the receiver next to the control console, the problem was eliminated. So I realized that this is my 5.1 system was due to the wireless rear speakers. The control panel sends a signal to the rear namely boxing and this was the noise factor.
The Nokia Receiver has its place now so next to the control panel and thus everything is working properly. However, as already described in another review, it may happen that the receiver is disturbed by certain other transmission networked or even interfere with other nets. With proper positioning, this can however be mostly solved.
For music quality I can only say ... SUPER! I enjoy listening to loud music and I'm very picky when the quality is bad. But the Bluetooth receiver from Nokia has not let me down. Powerful bass and clear music reproduction.
Once you disconnect from the phone, the light ring illuminates the top white again. Can turn completely to the device by pressing and holding for about 5 seconds not long the button. Then the ring lights still on red and then disappears. To restore power, simply press briefly twice on the button.
I'm really very happy with my purchase because the price was right, the quality of the hardware could not be better and the music quality is really very good. Thus, I can the Nokia MD-310 only recommend!