Until now, all Bluetooth Audio used Bluetooth Classic from the Bluetooth 2.0 and 3.0 days. Bluetooth 4.0 introduced Bluetooth Low Energy (BLE). But that was almost a decade ago. Since its launch there has been no official solutions for audio over BLE. That all changed today with the launch of Bluetooth Low Energy Audio (LE Audio) and the new LC3 codec.
Introduction to Android app development: ift.tt/2jqUt5L
Let Me Explain T-shirt: ift.tt/2OTwwBI
via YouTube Bluetooth LE Audio and the LC3 Audio Codec