Tying to find the Bluetooth connectivity disconnected, I did reboot multiple times until I could accomplish that. Like always right after rebooting I could connect the sound to my Bluetooth device, but after shutting the device off and seeking to reconnect no sound arrived towards the Bluetooth device. And https://www.bluetoothspeaker.top/dj-audio-player-sound-box-loudspeaker-amplifier-speaker-hot-selling-led-bluetooth-speaker/