When the original transmitter and headphones in this set can't automatically reconnect, you can follow below steps to re-pair and "lock" them:
Pairing & connecting
- Set transmitter to pairing mode - turn transmitter “on” then press and hold the MFB button for 5 seconds until the LED flashes BLUE and RED alternately.
- Set headphones to pairing mode – starting from the headphones’ “off” state, press and hold MFB button for 5 seconds until the LED flashes BLUE and RED alternately.
- Keep them close and wait for 5-10 seconds. Once connected you will hear “Connected” from the headphones.
“lock” the connection
Once the 2 devices are connected, double click the MFB button on the transmitter, the WHITE LED will turn on for 2 seconds.