Turn on the Bluetooth printer or scanner and make it discoverable. Just how to make the Bluetooth printer or scanner discoverable relies on the device. To learn how to make the Bluetooth printer or scanner discoverable, check the device's documentation or take a look at the manufacturer's website. Legacy https://www.bluetoothspeaker.top/high-power-bluetooth-speaker-for-pc-computer-speakers-subwoofer-boom-box-music/