I have a JBL clip 3. I have used without too much problem but now blue tooth does not recognize it and of course, I cannot pair it with my Mc Book Pro

Hello maronkiki,

Welcome to the Apple Support Communities. From what we understand, there are issues with Bluetooth. We'll do what we can to help.

Make sure the Bluetooth device is in pairing mode then try connecting: Connect a Bluetooth device with your Mac

You may have to check your product's documentation to determine how to do this. If it still isn't connecting, see if you can pair any device to your Mac through Bluetooth.

Kind regards.