English Bluetooth Headphone Amplifier
Buttons and Ports Labeled/
Operation Explained
3.5mm headphone port
Type C USB charging port
Clip
Power
Lanyard hole
Status indicator
NFC detecting area
Microphone
C:Vol down / Next track
A:Multifunctional
button
B:Vol up /
Prev. track
Functions & Operations
•Power on/off: Hold the Power button for
about 3 seconds until the blue light flashes for
three times, and the device will then power
on/off.
•Reset: Hold the Power button for about 10
seconds at any time.
•USB DAC mode: can be switched to Manual / Auto
mode via the App.
English Bluetooth Headphone Amplifier
Auto mode: connect it to the computer and then
select it as the audio output device to play music;
the white light will stay steadily on;
Manual mode: connect it to the computer and then
click the power button for 3 times; the white light will
stay steadily on.
•Firmware upgrade: Please go to
https://www.fiio.com/supports to get the detailed
instruction.
•Enter pairing mode
1. After powered on for the first time: the device would
automatically enter the pairing mode, and the red and
blue lights will flash alternately.
2. Force the device to enter Pairing mode: Hold the
button A for about 5 seconds when the device is on,
and the red and blue lights will flash alternately.
3.Clear current pairing: Hold the button B and C at the
same time for about 5 seconds when the device is on.
4. The BTR3 supports connecting with two devices at
the same time.
•Enter reconnecting mode
1. After disconnection, the blue light will flash twice
every two seconds; click the button A to reconnect.
2. After the device restarted, it will reconnect to the
last connected device automatically.