Auracast broadcast technology Auracast is a broadcast technology supported by Bluetooth LE Audio, which is a low-energy Bluetooth standard introduced in 2022. It allows a source device, like a smartphone or TV, to broadcast audio to an unlimited number of receivers within range, such as earbuds, speakers, or hearing aids. This means you can share audio with friends or stream to large numbers of people in public spaces, like airports or gyms. Auracast can be secured with a password for priv …