I have 2 SB7200 which i purchased in nov 2012. I got 2 to make use of the stereo function when pairing both speakers.

The problem i am having is the music fades in and out occasionally when connection by BT. It's common on both speakers. Tried on iOS, Android, Mac and PC. When connecting via the line in, there is no problem. It's pretty clear the BT module is underpowered and not functioning at advertised.

Kindly advice what's the best next course of action. thanks