Updated at 2024-09-13

BTR13 V12.4 firmware content:

1. Add a new option of pairing two devices simultaneously on the

    menu (PAIR2D);

2. Fixed the issue where there was no sound on phone calls when entering

    the power saving mode;

3. Fixed the issue where Bluetooth will be reconnected when unplugging headphones

    off the 4.4mm headphone output;

4. Fixed the issue of charging UI when charging in low battery;

5. Optimized the logic of Bluetooth reconnection when connecting to two devices

    simultaneously.

BTR13 V12.4 firmware download link: Click here