Because these are Android-based systems, glitches can happen. Here is how to fix them:
Most devices labeled "Yuyang King" are compatible with the or "DuoCo StripX" apps. yuyang king bluetooth app
If you can provide the (e.g., “Yuyang King K12 speaker”), I can help you find the official app name or user manual. Because these are Android-based systems, glitches can happen