Solved! Harman Kardon Solo Headphones

Solution
If all of them will only allow the Bluetooth headset to work from one ear only, then there is something wrong with the headset.

If you just bought it, I would be returning it and getting them to either replace them with another pair or buy a different brand.
If all of them will only allow the Bluetooth headset to work from one ear only, then there is something wrong with the headset.

If you just bought it, I would be returning it and getting them to either replace them with another pair or buy a different brand.
 
Solution