How do you pair a blue tooth device after you said forget this device?

To pair a Bluetooth device after you've selected "Forget This Device," first ensure the device is turned on and in pairing mode. On your smartphone or computer, go to the Bluetooth settings and search for available devices. When the forgotten device appears in the list, select it to initiate the pairing process, and confirm any prompts that may appear. Once connected, the device should work as normal.