Tying to find the Bluetooth connectivity disconnected, I did reboot multiple times right up until I could do this. Like always following rebooting I could connect the sound to my Bluetooth device, but right after shutting the device off and trying to reconnect no sound arrived towards the Bluetooth https://www.bluetoothspeaker.top/subwoofer-mobile-phone-inalambrico-speaker-light-audio-computer-bluetooth-speaker/