I did pick up the Bluetooth
transmitter/receiver. It seems to work pretty well. I can attach it to my Clip Zip and transmit to a Bluetooth speaker--this is how I will use it primarily.
Or I can use it as a receiver: flip a switch, attach it to a non-Bluetooth audio-in port, and pair it with my Bluetooth phone--I've been using it to stream Amazon Prime stations to my stereo that way.
It was easy to set up, and I'm happy with it.