HMDX Jam wireless speaker cannot be paired with my computer

SOURCE: Unable to set pairing between jabra bt 125 and bluetooth device

You simply need to hold the button down for a long time, it will flicker blue at first, don't let go of the button, and it'll turn blue for pairing.

SOURCE: HOW TO INSTALL A MOTOROLA H550 BLUETOOTH HEADSET

Usually to pair a new device like that, there would be some trick to set it up. Im not familiar with your exact model, however ive had success with holding some buttons in.

Usually you would hold down the power button, or perhaps the volume up and down together, hold them down for a few secs and the light will go blue/red/blue/red to show its in pairing mode.

SOURCE: pairing the insignia bluetooth wireless headset with an ipod

Perhaps either its pairing log is full, thay hold a number of pairing internally, and may need to be cleared to make room for another....or the headset may need to be reset, either way...heres the scoop....to clear the pairings hold the track forward/track backward buttons down together until the light flashes Purple....Empty pairing log......
If not then try pluging in the set to the charger and holing the 2 volume buttons down the same way..this will shut it off and reset it if it went a bit screwy on ya.... Merry Christmas

SOURCE: jabra vbt2050 won't connect

Jabra VBT2050 - You have to hold the round button in until the light stays lit (about 20 seconds) this will put it in discoverable mode, the pin is 0000, I have AT@T service and it works just fine. Hope this helps out!

SOURCE: old phone quit and blue tooth won't pair with new phone

Hold the volume buttons on the side while holding the call button for 10 seconds. It will reset the bluetooth and remove any other devices it may have been paired to. Then turn it off, back on and it will eventually stay lit blue and then you need to set it up through your phone. I hope this helps, I had the same problem and mine is working fine!