Tying to have the Bluetooth connectivity disconnected, I did reboot multiple times until I could achieve this. Like always soon after rebooting I could connect the sound to my Bluetooth device, but right after shutting the device off and attempting to reconnect no sound arrived to your Bluetooth device. https://www.bluetoothspeaker.top/bluetooth-retro-speaker-karaoke-bluetooth-speaker-audio-wireless-sound-card-bass-speaker/