The receivers fail to reconnect with the transmitter of Audiplex 2403s, how to do?

The receivers have been paired with the transmitter already, they should auto reconnect with the transmitter once turn on them. If fail to reconnect, please try as following steps:

Step 1 - Get the transmitter into PAIRING MODE

1) Slide the switch "Aux/Opt/Off” to "Opt" or "Aux" to power it on.
2)Press and hold the “Pair” button until the "Audio" indicator start flashing BLUE quickly.

Step 2 - Get the receiver into PAIRING MODE
1) Slide the switch "Aux/Opt/Off”  to "Opt" or "Aux" to power it on.
2) Press and hold the “Pair” button until the "Audio" indicator start flashing BLUE quickly.

Once connected, the "Audio" indicator on BOTH devices will turn SOLID BLUE. 

If more than one receiver failed to reconnect, please repeat the steps above for each receiver.