How to Incorporate Two Xiaomi Headphones Together: A Complete Synchronization Guide

Synchronizing two Xiaomi wireless headphones to play audio simultaneously is a challenge many users face, and it’s especially useful when you want to share music with a friend, use one earphone as a microphone and the other to listen to, or just create surround sound. However, not all models support this out of the box option, and in some cases require special protocols or third-party apps.

In this article, we’ll look at all the ways you can connect two Xiaomi headphones at once, from official features like Dual Audio to workarounds for models where this option is not provided. You’ll learn which models support synchronization, what limitations exist, and how to avoid common setup errors. We’ll also look at alternatives for devices where direct synchronization is not possible.

What Xiaomi headphone models support simultaneous connection of two devices

Not all Xiaomi wireless headphones can work in tandem with each other. Official support for Dual Audio (or similar) depends on the model and firmware version. Here are the key series where this option is available:

• 🎧 Xiaomi AirDots Pro 2 and AirDots Pro 2s — Support synchronization through the Mi Home or Xiaomi Wear app.
• 🎧 Xiaomi FlipBuds Pro and FlipBuds 2 Pro – have a built-in Dual Device Connection feature, but additional setup is required to play simultaneously.
• 🎧 Xiaomi Buds 3/3 Pro/4 — Supports connecting to two devices at the same time, but third-party apps are needed to synchronize the two headphones with each other.
• 🎧 Redmi AirDots 3 Pro and Redmi Buds 4 – limited support via Mi AI (only for some versions of the firmware).

It is important to consider that even in supported models, the function can work unstable due to the peculiarities of the Bluetooth 5.0/5.2 protocol. For example, in AirDots Pro 2, synchronization is possible only if both headphones are connected to the same sound source (smartphone, tablet or PC).

It’s also worth noting that Xiaomi doesn’t always advertise this feature in specifications, sometimes depending on the regional firmware or app version, for example, in Europe, FlipBuds Pro may not support Dual Audio, whereas in the Chinese version, this option is available.

Dual Audio in Mi Home/Xiaomi Wear

The most reliable synchronization method is through Mi Home or Xiaomi Wear, which works for most flagship models, but requires several conditions:

1. Both headphones should be the same model (e.g. two AirDots Pro 2).
2. Devices must be connected to one source (smartphone, tablet).
3. The Mi Home or Xiaomi Wear version of the app must be at least 5.6.0 (for AirDots Pro 2) or 6.1.0 (for FlipBuds Pro).

Instructions for setting:

1. Open the Mi Home or Xiaomi Wear app and go to the headphone management section.
2. Select your headphone model and find Dual Audio or Device Synchronization (in some versions it may be called Share Audio).
3. Activate the function and follow the prompts on the screen. You usually need to confirm the connection of the second headphone by holding the button on the case.
4. After successful synchronization, the sound will be played simultaneously on both devices.

If the Dual Audio item is not on the menu, try updating the headphone firmware through the app.

1. Go to Settings → Update firmware.
2. If a new version is available, install it and restart the headphones.

Update the Mi Home/Xiaomi Wear app to the latest version

Charge both earphones to 50% or more

Make sure both headphones are connected to the same smartphone

Disable other Bluetooth devices to avoid conflict-->

Important: In some cases, the Dual Audio feature may be lost after a firmware update, due to manufacturer optimizations. If this happens, try rolling back to the previous version of the software (if this option is available), or use alternative methods described below.

Alternative method: Bluetooth 5.2 and LE Audio protocol

If your headphones support Bluetooth 5.2 (such as Xiaomi Buds 4 or FlipBuds 2 Pro), you can take advantage of the LE Audio protocol, which allows you to transfer sound to multiple devices at the same time.

• 📱 Smartphone with Bluetooth support 5.2 and LC3-codec (e.g. Xiaomi) 12/13, Redmi K50 Pro or newer models).
• 🎧 Supported headphones LE Audio (check the specifications of your model).
• 🔄 Updated software on a smartphone (Android 12 and above).

Instructions for setting:

1. Activate the developer mode on your smartphone: go to Settings → About Phone → MIUI version and press 7 times on the build number.
2. Return to Settings → Additional → Developer Settings and enable the option to Enable LE Audio (if any).
3. Connect both headphones to the smartphone in normal mode.
4. Open a music playback app (such as Mi Music or Spotify) and check if the sound is on both devices.

If the sound is played on only one headphone, try:

• Reboot both headphones (hold the power button for 10 seconds).
• Disable and connect them to the smartphone again.
• Check if the Bluetooth settings include Double Audio or Multiple.

If this method didn’t work, don’t despair – in the next section, we’ll look at universal methods that work on almost any model.

Universal way: use of third-party applications

If your headphones don't support official synchronization, you can use third-party apps that emulate the Dual Audio feature.

• 📱 SoundAssistant (for Samsung, but it works on Xiaomi) – allows you to duplicate sound on two Bluetooth devices.
• 📱 Bluetooth Dual Audio – a specialized application for synchronizing headphones.
• 📱 Bose Connect (although designed for Bose headphones, it sometimes works with Xiaomi).

The following is a step-by-step guide for SoundAssistant:

1. Download and install SoundAssistant from Google Play.
2. Open the app and provide all the necessary permissions (access to Bluetooth, microphone, notifications).
3. Go to the Dual Audio or Multi-Device section.
4. Select both headphones from the list of connected devices.
5. Activate the option to synchronize the sound.

Note that when using third-party applications, audio delays (up to 200-300 ms) can occur due to the processing of the audio stream, and some applications (such as Spotify or YouTube Music) can block the output of sound to several devices at the same time.

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If the sound is interrupted or late, try reducing the bitrate in your Bluetooth settings. Go to Settings → Bluetooth → Audio Quality and select Balanced over High Quality.

Another nuance: some apps require root rights to work properly, and if you're not ready to root, choose programs marked No Root in the description.

Synchronization via Bluetooth splitter or transmitting module

If the software didn't work, you can use a hardware solution, a Bluetooth splitter or a transmitting module, which allows you to connect two headphones to the same sound source, even if they don't support protocol-level synchronization.

Popular models of splitters:

How to use a splitter:

1. Connect the splitter to the sound source (smartphone, TV or PC) via Bluetooth.
2. Activate the device search mode on the splitter (usually the power button is held for 3-5 seconds).
3. Connect both headphones to the splitter manually (like a normal Bluetooth device).
4. Start playing the sound – it will be duplicated on both headphones.

Advantages of this method:

• ✅ Works with any headphones, even if they do not support synchronization.
• ✅ Minimum sound latency compared to third-party applications.
• ✅ You can connect headphones from different manufacturers.

Disadvantages:

• ❌ Additional device that you need to carry with you.
• ❌ There may be interference if the splitter and headphones are too far apart from each other.

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Bluetooth-brancher is the most versatile solution for synchronizing two headphones, but requires additional costs (from 1,500 to 4000 rubles).

Frequent problems and their solutions

When trying to sync two Xiaomi headphones, users often encounter common errors, and here are the most common ones and ways to fix them:

⚠️ Warning: If the second headphone is switched on, check if Mono is activated in Bluetooth settings, which disables stereo sounding, which can lead to synchronization conflicts.

Problem 1: The sound is played on only one headphone.

• 🔹 Check if both earphones are connected to the same source.
• 🔹 Restart both devices (hold the power button for 10 seconds).
• 🔹 In the Bluetooth settings of the smartphone, turn off the option Absolute Volume (if any).

Problem 2: The sound is interrupted or delayed.

• 🔹 Reduce the distance between the headphones and the sound source.
• 🔹 Disable other Bluetooth devices that may interfere.
• 🔹 In Bluetooth settings, select the codec SBC instead AAC or aptX (the latter may cause delays).

Problem 3: The headphones are plugged in, but the sound is only on the left or right.

• 🔹 Check if the Mono mode is activated in the headphone settings (via the Mi Home app).
• 🔹 Reset the headphone settings to factory (usually done by holding the power button for 15 seconds).
• 🔹 Update the firmware headphones through the official application.

⚠️ Note: If you use Xiaomi headphones with iPhone, the Dual Audio feature may not work due to iOS limitations.

FAQ: Answers to Frequent Questions