To Pair Device, I need a Passkey for the Soyo Freestyler

"Figured it out. All user error. Re-read the manual again. Missed the obvious "Pairing HS11 and TX 10" section on page 2. Paired them properly and that solved the music listening issue. Put the HS11 itself in pairing mode (by holding down the pause/play button until the light blinked between blue and red) and was then able to pair it with my iPhone 3G. It did, however, have to actually restart the iPhone first as initial attempts didn't take me to the PIN screen. It just hung there as if it was searching. Once I restarted the phone, put the HS11 in pairing mode and then entered the PIN it worked." - found on another web site. It worked for me.

Press the play and the plus button at the same time. It must blink blue and red for the pairing to work.