Xfinity x1 box will transmit to blue tooth hearing aids

i have been using my xfinity x1 cable box, to stream bluetooth tv audo to my ks 10 heaing aids, it works perfictly for me, no latient voices…press the infinity tab, select the gear on the far right. scroll down to devise, enter, selectvaudio, then bluetoothn and pair. original audio still works for the guests, aboutva 25 foot range,will not work with bedroom box