Auracast is one of those hidden features that's already in many headphones, mobile phones, and televisions, but almost no one is using it, which is a huge waste. It's basically "Bluetooth in broadcast mode" for sharing audio with several people at once, without the hassle of pairing them one by one.

What exactly is Auracast?

Auracast is a new Bluetooth LE Audio capability that allows a single device (your phone, your TV, a speaker) to stream audio to multiple headphones or speakers simultaneously, like a private radio station.

Unlike classic Bluetooth, which is one-to-one (phone-to-headphones), Auracast works in "one-to-many" mode, without needing to pair each device individually.

Technically, it relies on Bluetooth Low Energy and the LC3 codec, which allows for high-quality audio transmission while consuming less battery power than older audio profiles. This opens the door to new experiences: from sharing music with friends to using it as an assisted listening system in public places like airports, cinemas, or museums.

How Auracast Works in Practice

An Auracast setup consists of three components: the transmitter (for example, your TV or mobile device), the Auracast Assistant (the app or phone system that shows you available broadcasts), and the receiver (your headphones, earphones, or speaker). The transmitter starts broadcasting an audio stream via Bluetooth LE along with an announcement that a broadcast is available, and the Auracast Assistant detects it, just like you detect nearby Wi-Fi networks.

From the user's perspective, you'll typically open a "Nearby Broadcasts" section on your phone or TV and see a list of available Auracast broadcasts, with names like "Bar TV," "Gym Cardio Room," or "Room 3 - Cinema." You simply choose the one you want, tap to join, and your audio syncs with everyone else connected, each person using their own volume and device.Where it's already being used (even if they don't tell you) Auracast is already being rolled out in products from major brands like JBL, Samsung, LG, and Google, but almost no one is using it because it's a feature with zero promotion. JBL, for example, is one of the few brands that boasts Auracast in its recent speakers and headphones, from portable models like the Charge and Clip to larger systems like the PartyBox, and even dedicated accessories for streaming audio via Auracast to nearby headphones. In the world of TVs, Samsung has been integrating Auracast into its high-end 8K TVs since 2023, and LG has started adding support to its 2025 OLED and QLED models, although they barely mention it in the product specifications. On mobile devices, Android already supports Auracast, and Pixel, Samsung Galaxy, and other manufacturers are activating LE Audio and Auracast in their newest models, turning your smartphone into a "universal remote" for entering and exiting audio broadcasts in public.

What it is and why you should start using it

Here's the interesting part: Auracast isn't just about "sharing music with friends," it's a new layer of audio over the physical world. Some super powerful uses:

Plus, for people with hearing loss, it's a huge leap forward: they can receive audio directly in their Bluetooth LE hearing aids, apply their own presets from their phone, and better understand announcements or dialogue without relying on older induction loop systems. It's accessibility, but also pure convenience for anyone who uses headphones. The great advantage is that all of this is done with low latency and good synchronization, key to ensuring that the audio doesn't lag behind the image or live event, even when many people are connected at the same time. And because it works over Bluetooth Low Energy, the impact on your phone's or headphones' battery is less than with classic profiles. How to know if you already have Auracast and how to get started. Chances are, one of your devices already has Bluetooth LE Audio and Auracast and you don't even know it. Here are some quick steps: Auracast aims to become the standard for sharing audio in public and private spaces, just as Wi-Fi became essential for data. Having compatible devices today means you'll be ready when your gym, your local movie theater, or your local airport activates Auracast broadcasts and lets you "tune in" to the perfect audio with a couple of taps. If you appreciate practical technology, Auracast is that hidden gem that deserves to be brought out of the shadows. Start searching for it on your devices, enable LE Audio options, and as soon as you see an available stream, connect: you probably won't want to go back to good old Bluetooth.