User's Manual

4. LED indicator

LED indicator

The status of the BTunes tx

Red and blue LED flash alternately

Paring mode

Blue LED flash once every 2 seconds

Not connected with device

Blue LED flash twice every 4 seconds

Connected with device-SBC mode

Blue LED flash twice every 4 seconds

Connected with device-APtx mode

Blue LED flash twice every 4 seconds

Connected with device-APtx low

latency mode

Red LED instead of blue LED

Battery low

5. Factory Reset

In the status of charging, long press MFB button about 10 seconds and release

it until you see the purple ( red + blue) LED on simultaneously.

Remarks:

 The LED indicator of factory reset as following: red LED on-blue LED on-

red and blue LED flash alternately-purple(red+blue) LED on-red LED on.

 After factory reset, the paired list of the BTunes tx will be deleted. After

power on again,the BTunes tx will enter pairing mode automatically, and

you need to re-pair and connect with Bluetooth devices.