It only happen over Bluetooth connectivity. And also only when you play the music considerably low. If you play the music louder as compared to normal it will not happen until and unless the battery is low. To fix this play the music louder. And ofc it isn't possible in all conditions. If you want to play the music low and not have it turn off use an AUX cable to connect the speaker with your Apple/Android. Then is it will not happen no matter how low the volume it. Be sure to reduce the sound of the speaker from the speaker it self and inc volume from your phone. Otherwise there will be a Buzz irritating sound.