1. In FM Mode, put in micro charging cable or AUX cable to increase the FM Radio Signal.
If the speaker crash during using, you can press and hold the power button for 8 seconds to reset and shut down.
2. If you insert USB/ TF card, please use FAT32 Format.
3. TWS: Keep the two speakers under wireless mode without pairing. Press "M" button for 2-3 seconds either of the speaker until you hear a hint and mean-time the indicator stop flashing, now it is in TWS mode, then pair the mobile.