Tying to get the Bluetooth connectivity disconnected, I did reboot multiple times until I could do so. Like always right after rebooting I could connect the sound to my Bluetooth device, but immediately after shutting the device off and seeking to reconnect no sound came to your Bluetooth device. https://www.bluetoothspeaker.top/high-power-outdoor-karaoke-party-portable-trolley-wireless-bluetooths-speaker/