How to connect two Xiaomi wireless headphones to each other: full instruction with solutions to problems

Xiaomi wireless headphones have long ceased to be just an accessory – they have become an integral part of the brand ecosystem, offering users not only high-quality sound, but also convenient features like dual connection or synchronization with each other. However, not all owners know that most models (from the budget Redmi AirDots to the flagship Xiaomi Buds 4 Pro) support TWS-pair mode, where two separate headphones can be combined into a single system, this allows you to listen to music together with another, use one earphone as a microphone for calls, and the second for listening, or even create a stereo effect with two independent devices.

In this article, we’ll look at all the ways Xiaomi earbuds can sync with each other, from standard Mi Fitness connectivity to manual methods for models without official feature support. We’ll focus on common bugs (like not being able to find a second earbud or persistent communication cliffs) and how to fix them. If you’ve ever wondered whether you can connect Redmi Buds 3 Lite to Xiaomi Air 2 SE or how to make two sets of headphones work simultaneously, here’s the answers.

Which Xiaomi models support connecting to each other?

Not all Xiaomi wireless headphones can sync with each other, which depends on the Bluetooth chip, firmware version and support from the manufacturer.

⚠️ Note: If your model is not listed in the table, it does not mean that synchronization is impossible. GT1 or 1More ColorBuds, released under the Xiaomi brand, also support the feature, but require manual tuning through Android Developer Mode.

To check compatibility:

• 🔍 Go to the Bluetooth settings on your smartphone and see if both headphones are displayed as separate devices.
• 📱 Install an official app for your model (e.g. Xiaomi Earbuds for Buds 3 Pro).
• 🔄 Try resetting your headphones to factory settings (usually by pressing the button for 10 seconds).

Method 1: Standard application connection (for officially supported models)

The most reliable method is to use proprietary software, which is suitable for Xiaomi Air 2, Buds 3/4 Pro and other models with support for Dual Connection.

Instructions:

1. Download and install the application: 📲 For Air. 2 / Air 2 SE — Mi Fitness (available on Google Play and AppGallery). 📲 For the Buds. 3/4 Pro — Xiaomi Earbuds.

first-ear

Double-connection

TWS Mode

second-ear

Connect

Charge both headphones to 100% | Disconnect them from other devices | Make sure the app version is up to date |Enable Bluetooth and GPS on your smartphone-->

⚠️ If the headphones do not find each other, try:

• 🔄 Reboot your smartphone and headphones (remove them from the case for 30 seconds).
• 📵 Disable other Bluetooth devices within a 10 metre radius (they may interfere with the device).
• 🔧 Update the firmware headphones through the application.

💡

If the app does not have a “Dual Connection” section, check the region of your Mi Account. Some features are only available to users in China or Europe.

Method 2: Manual Bluetooth connection (for informal synchronization)

If your model doesn’t support natively (like the Redmi AirDots or Haylou GT1), you can try plugging your headphones in manually, which works in an unstable way, but sometimes helps.

Algorithm of action:

1. Turn on pairing mode on both headphones: For AirDots: press the touchpad for 5 seconds until the red/white light flashes. For Haylou: press the button on the case 3 times in a row.

Settings → Bluetooth

first-ear

second-ear

If both headphones are connected, start playing music - the sound should be duplicated.

Critical detail: Some models (such as the Redmi Buds 3 Lite) block the simultaneous connection of two headphones to the same source, in which case you will have to use two different smartphones or special Bluetooth transmitters.

Advantages of the method:

• ✅ It works without apps.
• ✅ Suitable for outdated models.

Disadvantages:

• ❌ Possible sound delays (up to 0.5 seconds).
• ❌ Low communication stability (earphones can be turned off).

Method 3: Using two smartphones to create TWS-pair

If the headphones refuse to sync with one device, you can go for the trick of using two smartphones, a technique that is suitable for models without official support for the feature, but requires an additional gadget.

Step-by-step:

1. Take two smartphones (e.g. Xiaomi and Redmi).
2. On the first phone, connect the left earphone.
3. On the second phone, connect the right earphone.
4. On both phones, run the same audio file (e.g. via Spotify or YouTube Music) and sync the playback manually.
5. For calls, use conference call: from the first phone, call the second and turn on speaker.

⚠️ Attention: This is a way of creating a noticeable delay between the headphones to minimize the effect:

• 🎵 Use low bit rate audio files (e.g. 128 kbps).
• 📶 Connect both phones to the same Wi-Fi network to synchronize time.
• 🔊 Turn off the sound processing (uh)QUALIZER) playback.

💡

Two smartphones are a temporary solution. For permanent use, it is better to buy headphones with official support. TWS-pairs or Bluetooth transmitter with dual link function.

Solving common connection problems

Even if you do everything right, Xiaomi headphones can behave in an unpredictable way, and let’s look at the typical mistakes and how to fix them.

Problem 1: Headphones can't find each other

Causes and solutions:

• 🔋 Low battery charge (less than 30%) Charge both earphones to 100%.
• 📵 Disconnect Wi-Fi, microwave, wireless mice within 5 meters.
• 🔄 Update your software with Mi Fitness or Xiaomi Earbuds.
• 🚫 Manufacturer-Blocked: Some models (e.g. Redmi AirDots S) do not support the function at the software level.

Problem 2: The sound is only in one headphone

What to do:

• 🔊 Check the sound balance in the smartphone settings (Settings) → Sound. → Stereo balance).
• 🔄 Reconnect the headphones: remove them from the list of Bluetooth devices and add again.
• 🎧 Change the headphones (left) → Sometimes the failure is due to incorrect definition of roles.

Issue 3: Persistent communication breakdowns

Possible causes:

• 📶 Weak Bluetooth signal. Keep your smartphone closer to the headphones (no further than 1 meter).
• 🔋 Battery's dead, charge the case, even if the headphones are 100%.
• 📱 Conflict with other apps. Close background programs, especially instant messengers and games.

If nothing helps, reset your headphones:

1. Place both headphones in the case.


2. Press the touch panel on both headphones for 15 seconds (until the red indicator flashes).




3. Remove the headphones from the case and reconnect.

How to check if the headphones are successfully synchronized?

It's not always obvious that the connection was successful. Here are some ways to check the connection between the headphones:

• 🎵 Sound test: Play the music and turn each earpiece over with your palm, so the sound should become mono, not completely disappear.
• 📊 In-app check: Mi Fitness or Xiaomi Earbuds should display status Connected (TWS).
• 🔊 Microphone Test: Call someone and ask them to confirm that the sound is coming from both headphones.
• 🔋 Battery Indication: On some models (for example, Buds 4 Pro) the weight shows the charge of both headphones only when successfully synchronized.

⚠️ Note: If only one earphone is displayed in the app, but the sound is coming from both, this does not mean full synchronization.

💡

Use a metronome to check the synchrony of sound (for example, in the Soundcorset app). If the clicks in the headphones match, the synchronization is successful.

Alternative methods: Bluetooth transmitters and adapters

If your Xiaomi headphones don’t support connecting to each other, but you need dual mode, you can use external devices:

1. Bluetooth transmitter with Dual Link support

Examples of devices:

• 🎧 1Mii B06 Pro (supports 2 headphones at the same time).
• 🎧 Avantek APT-X (low-latency).
• 🎧 TaoTronics TT-BA09 (budgetary).

How to connect:

1. Connect the transmitter to the sound source (TV, PC, smartphone) via 3.5 mm jack or USB-C.
2. Activate Dual Link mode (usually by pressing the transmitter button long).
3. Connect both Xiaomi headphones to the transmitter as a normal Bluetooth device.

Applications for sound duplication

For Android:

• 📱 SoundAssistant (allows audio output to two devices).
• 📱 Bluetooth Auto Connect (forcible connection of several gadgets).

For iOS:

• 🍎 Built-in Audio Sharing feature (available on iPhone with iOS 13)+).

⚠️ Attention: When using transmitters or applications, there may be a delay in sound (latency). To view video, this is critical - synchronize the sound manually in the player.

FAQ: Frequent questions about connecting Xiaomi headphones