Unable to connect 2 speakers in wireless stereo

You have followed the how-to-guide on pairing two Minirig 4s together and they do not seem to connect

1. Ensure that you are connected to one of the Minirig 4s and it is playing music before you hold the volume + button.
2. Ensure the other speaker is NOT playing music when you hold the volume + button
3. Check the 4 bar BLUE LED pattern on the Minirigs - they should be different during the pairing process
4. Turn them both off and start again
5. If you are paired and connected to both Minirigs, try unpairing/disconnecting from one of the speakers before starting the wireless stereo pairing
6. Make sure the speakers are fairly close, around 1-5 meters apart