iPhone 16 Bluetooth issues

I just got my new iPhone 16 set up, but I can't get any of my bluetooth devices to connect. They don't even appear on the menu. The icon just spins but never identifies any of my devices.

I've tried reseting the network connections, I've rebooted my phone, I've toggled on and off the Bluetooth setting, I've ensure my phone is close enough to the Bluetooth device, I've searched the Manufacturers instructions for the device. I don't know what else to do. Please help!!