Tying to have the Bluetooth connectivity disconnected, I did reboot multiple times right up until I could achieve this. Like always after rebooting I could connect the sound to my Bluetooth device, but following shutting the device off and trying to reconnect no sound arrived to your Bluetooth device. https://www.bluetoothspeaker.top/sound-card-audio-home-ktv-wireless-bluetooth-speaker-with-dual-speaker/