Tying to have the Bluetooth connectivity disconnected, I did reboot multiple times till I could do so. Like always right after rebooting I could connect the sound to my Bluetooth device, but soon after shutting the device off and trying to reconnect no sound arrived for the Bluetooth device. https://www.bluetoothspeaker.top/multifunctional-charging-wireless-bluetooth-speaker-rgb-portable-5-0-speaker/