Introduction: Why connect two TWS-headphone?
Xiaomiโs True Wireless Stereo (TWS) technology allows you to use headphones without wires, but what if you want to share a sound with a friend or use two sets at the same time? For example, when youโre watching a movie on a Redmi Note 12 and want a second person to hear sound through their Redmi Buds 4 Pro. Or when you have two different sets of headphones and you want to switch between them without constantly resynching.
Unfortunately, the standard Bluetooth protocol does not support two pairs simultaneously. TWS-But there are workarounds, from the use of special applications to the dual audio function in the audio system. MIUI (In this article we will discuss all working methods, including nuances for different models of headphones Xiaomi, Redmi and POCO.
Importantly, not all methods are universal. For example, Xiaomi Buds 3T and Redmi AirDots 3 behave differently when trying dual connectivity. We tested the solutions on current MIUI 14 and HyperOS firmware, so the instructions will be as accurate as possible.
Which Xiaomi models support two headphones simultaneously?
Not all. TWS-Xiaomi headphones can work in tandem with another model. Here are the officially confirmed combinations and limitations:
| Model headphones | Support for dual audio | Notes |
|---|---|---|
| Xiaomi Buds 4 Pro | Yes (with MIUI 14+) | Requires the inclusion of the function in Bluetooth settings |
| Redmi Buds 4 Active | Yes (only with Redmi/POCO smartphones) | It does not work with iPhone and other Android devices |
| Xiaomi Air 2 SE | No. | Older chip does not support multithreading |
| POCO Buds X1 | Yeah (with HyperOS) | Requires an update to the headphone firmware |
| Redmi AirDots 3 | Partially. | It only works with the Xiaomi Earbuds app. |
If your model is not in the spreadsheet, it doesnโt mean that the methods in the article wonโt work. For example, Xiaomi Buds 3 Pro doesnโt support dual audio at the firmware level, but you can use third-party applications like SoundAssistant or Bluetooth Dual Audio.
โ ๏ธ Attention: Headphones with Qualcomm chips QCC3040 (For example, Redmi Buds 3 Lite do not support simultaneous connection of two pairs due to hardware limitations.
Method 1: Using the built-in Dual Audio function in MIUI/HyperOS
The most reliable way is to use the native dual audio function available on Xiaomi, Redmi and POCO smartphones with MIUI 12.5+ or HyperOS.
- Open Settings โ Bluetooth and connect the first pair of headphones (for example, Xiaomi Buds 4).
- Slip the gear icon next to the headphones name, then select Dual Audio.
- Include the second pair of headphones in pairing mode (usually pressing the button for 5 seconds before the indicator flashes).
- Select the second pair from the list of available devices and confirm the connection.
If you don't have Dual Audio on the menu, your smartphone or headphone model doesn't support the function, so move on to the following methods.
Is the first pair of headphones connected?
Is the smartphone firmware updated to MIUI 14/HyperOS?
Is Bluetooth enabled on both devices?
Xiaomi Earbuds app is downloaded (if required)-->
On some devices (e.g., POCO F5), the function may be called Dual Audio or Multi-Connection. If you only use one pair of headphones after you connect, try:
- ๐ Reboot the Bluetooth module (disable/enable Bluetooth).
- ๐ฑ Update the firmware of headphones through the Xiaomi Earbuds app.
- ๐ง Reset the headphones to factory settings (clamb the button for 10 seconds).
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If the sound in two headphones is late, try in the Bluetooth settings to turn off the AAC codec and switch to SBC. This will reduce the sound quality, but eliminate the lags.
Method 2: SoundAssistant (Bluetooth Dual Audio)
If your smartphone doesn't support Dual Audio at the system level, you can use third-party apps. We tested three of the most reliable ones:
- SoundAssistant (from Samsung, but runs on Xiaomi): ๐ฅ Download from Google Play. ๐ Enable Double Audio in the App Settings. ๐ต Connect the second pair of headphones through the app menu.
- Bluetooth Dual Audio (from Mediatek): ๐ ๏ธ Demands a license. ADB full-time. ๐ง Supports up to 4 devices at a time (but with delays).
Xiaomi Earbuds (official):
- ๐ It only works with headphones. Xiaomi/Redmi/POCO.
- ๐ Allows switching between devices, but does not always support simultaneous playback.
An important nuance: applications like SoundAssistant can conflict with MIUI system settings. If the sound disappears after installation, try:
adb shell settings put global bluetooth_avrcp_version 1.6This command will reset the AVRCP version of the protocol, which sometimes solves connection issues.
โ ๏ธ Note: Dual audio applications may reduce sound quality due to stream transcoding. For example, aptX automatically switches to audio. SBC, lesions.
SoundAssistant|Bluetooth Dual Audio|Xiaomi Earbuds|Other|I don't use it.-->
Method 3: Use of Bluetooth transmitter (for TV, PC, consoles)
If you need to connect two sets of Xiaomi TWS to a device that does not support Dual Audio (for example, Xiaomi TV or POCO Pad), you can use an external Bluetooth transmitter with multithreading function.
- ๐บ 1Mii B06 Pro โ supports 2 devices at the same time, low latency.
- ๐ฎ Avantree Oasis Plus โ Optimized for gaming consoles (PS5, Nintendo Switch).
- ๐ป Creative BT-W5 โ PC with support for aptX LL.
Instructions for setting:
- Connect the transmitter to the audio source (e.g., AUX or Optical output of Xiaomi TV).
- Activate multithreading mode (usually double pressing the transmitter button).
- Connect the first pair of headphones (Xiaomi Buds 4 Pro).
- Connect the second pair (Redmi Buds 4 Active) - the indicator on the transmitter should flash twice.
The cost of these transmitters is from 1,500 to 4000 rubles, and they solve the problem not only for Xiaomi devices, but also for any equipment without Dual Audio support.
How to check the compatibility of the transmitter with your headphones?
Method 4: Connection via audio splitter (for wired devices)
If you have a Xiaomi TWS with wired connectivity (e.g., via USB-C or 3.5mm adapter), you can use an audio splitter.
- ๐ง Xiaomi FlipBuds Pro (has a connector) USB-C).
- ๐ฑ Smartphones with output of 3.5 mm (for example, Redmi) 10C).
- ๐ป Laptops and PCs with multiple audio outputs.
Procedure:
- Buy a 3.5mm Y-splitter (e.g. UGREEN 20299).
- Connect the splitter to the sound source.
- Connect two Bluetooth transmitters (e.g., TaoTronics TT-BA07) to the splitter.
- Synchronize each transmitter with a separate pair of Xiaomi TWS.
Cons of the method:
- โ ๏ธ Sound delay up to 200 ms (critical for video).
- โ ๏ธ Requires constant recharging of transmitters.
- โ ๏ธ The sound quality depends on the splitter (cheap models add noise).
Problem Solving: What to do if the headphones are not connected at the same time?
If none of the methods worked, check the following points:
| Problem. | Possible cause | Decision |
|---|---|---|
| The sound only goes in one pair. | Incompatible codec | In Bluetooth settings, select SBC instead of AAC/aptX. |
| The headphones are connected, but the sound is interrupted. | Weak Bluetooth signal | Reduce distance to source or remove interference (Wi-Fi routers) |
| The second pair is undetectable. | Outdated firmware | Update your headphones with Xiaomi Earbuds or Mi Home |
| Sound delay in games/video | Used by AVRCP 1.3 | Update your smartphone firmware or use a transmitter with aptX LL |
If the problem persists, try resetting your Bluetooth settings on your smartphone:
- Go to Settings โ Applications โ Application Management.
- Find Bluetooth, press Warehouse โ Clear the data.
- Restart the device and reconnect.
โ ๏ธ Note: Some Xiaomi smartphones (such as the Mi 11 Ultra) may require re-authorization in geolocation-based applications (such as Google Maps) after resetting Bluetooth).
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If your Xiaomi headphones are released before 2021 (like AirDots Youth), they most likely donโt support simultaneous connectivity due to the outdated Realtek RTL8763B chip.