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Can you provide which mobile device you're trying to connect the headset with?
Tony A - Community Support
Thanks for the clarification. Are you not able to get the communication side of things working? If I remember correctly, with iOS 12, it should only show the headset in the Bluetooth list once without the LE designation. I currently use an iPhone X with 12.1 and it shows up just as the headset once.
I don't believe the iOS Bluetooth display shows the LE connection, even though it is active. I just verified on my iPhone 8 running 12.1. My win10 laptop shows both, however. I suspect that it is just a matter of how each system's designers chose to treat the LE connection. Apple seems content to let it run in the background.
Let us know if you find something different.
Greg - Community Support