I have recently bought a set of JBL TUNE 600BTNC noise cancelling headphones and they paired immediately with my 2017 iMac18,3 running under macOS Catalina v10.15.3 (19D76). However, my 10.5" iPad Pro Model MPME2B/A running under iOS 13.3.1 cannot "see" the cans even when they are placed right next to each other. I have carried out a hard reset on the iPad. The iPad can see four unconnected devices under "My Devices" but nothing under "Other Devices". I know little of Bluetooth so am at a loss to understand why I can't pair with the iPad, I have disconnected the link on the iMac whilst trouble-shooting. Is anyone able to point me in the right direction please?