I have a device that will pair with a phone or PC (Bluetooth, obvs.) or whatever and stream audio. But to connect to the source it has to be turned off (actually battery removed because there is no power switch) and then it will reconnect with whatever it is paired to. Which can be one of only two things. As you can imagine, it's a bit of a drag.
My potential solution is to have a device that fronts this one and acts as a man in the middle. This new device will easily pair with multiple sources, and easily connect to the preferred one (and then switch, if required, to a different one). So basically Bluetooth streaming client one end, Bluetooth streaming host the other.
Any suggestions for achieving this, or knowledge of an existing one I can go and buy? Needs to be small and battery powered.