I just purchased Plantronics BackBeat 906 and am receiving sound only from one earpiece. Is there a setting that I am not aware of that could be causing this problem?
Radio Communications - Plantronics - Backbeat 903 Bluetooth Wireless Stereo Headphones Headset
Answers & Comments
I would try the reset option listed in Plantronics user guide. Here are the steps for the reset and I will include the link to the user guide also.
Instructions to Perform a system reset:
While plugging in the AC charger, hold the power/pair button. The headphones will show a solid red or blue light when they have been successfully reset.
Plantronics Backbeat User's Guide
Good luck from Headsets Direct!