How to Make Two Xiaomi Wireless Headphones Work at the Same Time: 5 Proven Ways

You bought a second pair of Xiaomi wireless headphones and want to use them at the same time as the first one — for example, to share music with a friend or amplify sound? Unfortunately, most models do not have a factory dual connection function (like the AirPods or Galaxy Buds), but there are workarounds. In this article, we will analyze all the working methods for different scenarios, from simple Bluetooth settings to using specialized applications.

The problem is that the Bluetooth protocol 5.0/5.2, Xiaomi headphones (e.g. Redmi AirDots) 3 Pro, Xiaomi Buds 4 FlipBuds Pro, technically supports connecting to two devices at the same time (Dual Audio function), but only in the "source" mode. → So, one smartphone can't be a sound source for two pairs of headphones without some extra tricks, but there are solutions, from using a second phone to software tricks.

Importantly, the methods are different for headphones with Qualcomm chips (such as AirDots 3 Pro) and BES (budget models like Redmi Buds 3 Lite). We have tested the instructions on devices running MIUI 14 and Android 13, but most of the methods work on other versions as well.

1.The way for Xiaomi smartphones: Dual Audio feature (MIUI 12 and later)

The easiest method is to use the built-in Dual Audio feature that appeared in MIUI 12 and works on all subsequent versions, which allows you to transfer sound from one smartphone to two Bluetooth devices at the same time, but there is a critical limitation: both headphones must support the A2DP protocol (all modern Xiaomi models support it).

How to turn on:

1. Connect the first pair of headphones to your phone via Bluetooth.
2. Open Settings → Connections and Sharing → Bluetooth.
3. Click on the gear icon next to the connected headphones.
4. Select Dual Audio (or "Dual Audio Output" in Russian localization).
5. Turn on the function and connect the second pair of headphones.

If there is no Dual Audio item:

• 🔄 Update. MIUI Up to the latest version (check in Settings) → The phone. → Updating the system).
• 📱 Make sure your smartphone supports the feature (see the full list of models in the table below).
• 🔧 Reset Bluetooth Settings: Settings → Annexes → Application management → Three points. → Reset the settings.

⚠️ Warning: Dual Audio can cause up to 200-300ms of delay between headphones, which is critical for watching video, but not noticeable when listening to music.

2.Use of the second smartphone as a repeater (for any models)

If your smartphone doesn’t support Dual Audio or your headphones don’t sync, you can use the second phone as an intermediate device, which works even with low-end models like the Redmi Buds 3 Lite.

Algorithm of action:

1. Connect the first pair of headphones to the main phone (sound source).
2. Connect the second pair to the second phone (retransmitter).
3. On the repeater, turn on the Bluetooth Sound Transfer mode (in some firmwares called Audio Relay).
4. From the main phone, connect to the repeater as a Bluetooth speaker.

For stable operation:

• 📶 Both phones should be no more than 5 meters apart.
• 🔋 The battery charge of the repeater should be above 30%, otherwise communication breaks may occur.
• 🎧 Headphones on the repeater should support the profile A2DP Sink: All Xiaomi models support it).

Turn on Bluetooth and visibility mode

Disable power saving for Bluetooth

Install the SoundWire app (if there is no built-in Audio Relay)

Check the compatibility of headphones with the repeater-->

⚠️ Note: With this connection, the sound quality is degraded due to double compression (source file). → first-hand Bluetooth → It's not critical for music, but for podcasts or audiobooks, artifacts can come up.

3. Dual Audio Applications: SoundAssistant and Bluetooth Dual Audio

If the built-in MIUI functionality doesn't work, you can use third-party apps.

1. SoundAssistant (from Samsung, but runs on Xiaomi)

• 🔊 Allows you to duplicate sound on two Bluetooth devices.
• 📥 You can download it on Google Play (free of charge).
• ⚙️ Requires permission to change system settings (issued manually).

2. Bluetooth Dual Audio (from developer Nexstreaming)

• 🎵 Specialized solution for synchronizing two pairs of headphones.
• 💰 There is a free version with advertising and paid (~300 rubles without restrictions.
• 🔧 Supports sound delay setting for synchronization.

Instructions for setting up SoundAssistant:

1. Install the application and open it.
2. Go to the Dual Audio section.
3. Turn on the function and select both pairs of headphones from the list.
4. Set up the volume balance between devices.

💡

If the app doesn’t see the headphones, try connecting them first through standard Bluetooth settings and then opening SoundAssistant.

Manual creation of a “virtual audio device” (for advanced users)

This method requires root rights or ADB, but it gives you the maximum flexibility, and we're going to create a virtual device that will relay the sound to two pairs of headphones.

Step-by-step:

1. Connect your phone to your PC and enable USB Debugging (Settings → About Phone → MIUI version – press 7 times, then go back to Additional Settings → For Developers).
2. Install Android SDK Platform-Tools on your PC.
3. Open the command line and type: adb shell settings put global bluetooth_dual_audio_enabled 1
4. Reboot the phone.
5. Now, the option of Dual Audio will appear in Bluetooth settings (if it was not previously available).

If after the execution of commands the option does not appear:

• 📱 Try to reset the custom recovery (for example, TWRP) repeat.

5. Alternative solutions: Bluetooth transmitters and audio mixers

If the software methods do not work, you can use hardware solutions:

1. Bluetooth transmitter with Dual Link support

• 🎧 Devices like this. 1Mii B06 Plus or Avantek. APTX Allows you to connect two sets of headphones to a single source (for example, a TV or PC).
• 🔋 It's battery-operated or USB-port.
• 💰 Cost: from 2000 to 5 000 rubles.

2. Audio mixer (for professional use)

• 🎛️ Devices such as Behringer MicroAMP HA400 allow you to connect several pairs of headphones to one output.
• 🔌 Requires wired connection to the sound source (3.5 mm or) USB-C).
• 🎵 Ideal for studio work or music sharing.

Advantages of hardware solutions:

• ✅ No sound delays.
• ✅ It works with all types of headphones, including no-Xiaomi.
• ✅ It does not depend on the firmware of the smartphone.

⚠️ Attention: When using Bluetooth transmitters, sound quality may deteriorate due to re-encoding of the signal. For sound-critical tasks (for example, listening to music in high resolution), it is better to use wired mixers.

Frequent problems and their solutions

Even after a successful connection, there can be difficulties.

If Xiaomi headphones refuse to connect at the same time:

1. Update your headphone firmware through the Mi Earphones app (available on Google Play).
2. Reset the headphones to factory settings (usually by pressing the button for 10-15 seconds).
3. Check if Low Latency is enabled (it can block dual connection).

💡

Most of the problems with dual audio on Xiaomi are due to the conflict of Bluetooth codecs.Forced use of SBC usually solves the problem of interruption of sound.

FAQ: Answers to Frequent Questions