Turn about the Bluetooth printer or scanner and make it discoverable. Just how to make the Bluetooth printer or scanner discoverable depends on the device. To learn how to make the Bluetooth printer or scanner discoverable, check the device's documentation or go to the manufacturer's website. In June 2005, https://www.bluetoothspeaker.top/factory-whole-sale-wireless-bluetooth-speaker-portable-bluetooths-speaker-outdoor-radio/