2. How to turn on the BTR5 2021 and enter pairing mode?

Hold the power button for about 3s to turn it on (the display shows 'FiiO'), and then hold the multifunction button for about 5s to enter the pairing mode (the display shows 'PAIRING'). Go to Bluetooth settings on your phone and select the BTR5 2021 for pairing. In addition, if turning on the BTR5 2021 for the first time or after clearing the pairing, it will automatically enter the pairing mode.