Tying to get the Bluetooth connectivity disconnected, I did reboot multiple times until eventually I could accomplish that. Like always following rebooting I could connect the sound to my Bluetooth device, but immediately after shutting the device off and wanting to reconnect no sound came into the Bluetooth device. https://www.bluetoothspeaker.top/wireless-bluetooth-speaker-hifi-led-outdoor-loudspeaker-music-surround-bass-box/