Hi,
I've got a brand new shb9100. I want to hear music and audio books via bluetooth from smartphone and tablet.
Unfortunately there appears to be a constant hum on the right ear while playback. This, of course, is very disturbing inbetween songs, in quieter parts of songs or when hearing voice in audio books. I'm not very happy with it...

As soon as I stop playback, the hum remains for another second and then it vanishs.

Now I'd like to know if this is normal behaviour or if I can do something about it.
Or should I return it and get a new one (sbh9100 again?)?

Best regards
uk