Re: Dual Bluetooth
I've got noise canceling ears but I wouldn't recommend them because it's called deafness.
My recently fitted NHS hearing aids communicate with with a dongle (Oticon Streamer Pro) which allows switching between a number of bluetooth devices, telephone adapter, TV adapter, mobile phone. Unfortunately the phone adapter does't work with the office phone system. The dongle also lets me turn off the microphones in my hearing aids so I can work in splendid isolation.