I purchased a bluetooth audio dongle transmitter so I can listen to my bcd396xt while at work....discreetly. It plugs directly into the headphone jack. My problem is I've tried two different "over one ear" bluetooth headphones and can't get them to pair up....just keep getting the flashing red/blue lights. Is the problem because the headphones need to be stereo (over both ear type) or ? Any help would be greatly appreciated. I want to be able to listen with the one ear type headphone with this transmitter.