Introduction: Why Xiaomi is limiting the connection of two headphones
Xiaomi smartphone owners often face the challenge of connecting two pairs of Bluetooth headphones to the same device at the same time. Unlike Samsung or Apple flagships, where Dual Audio functions out of the box, MIUI is either missing or hidden from the user, the reason lies in the hardware limitations of Qualcomm chips (in budget models) and the companyβs policy, which does not consider this feature a priority for the mass segment.
But you can get around the limitations β and it doesnβt always require root access or custom firmware. In this article, weβll look at 5 proven ways to synchronize two pairs of headphones with Xiaomi, including official solutions for new models (starting with the Redmi Note 11 Pro).+ Xiaomi 12, workarounds for older devices and even hardware adapters for audiophiles. MIUI (12 to 14) and problems with sound delay.
Before you go to the instructions, make sure your headphones support profiles. A2DP (for streaming music; and AVRCP (If at least one pair is running an outdated protocol HFP (for example, cheap TWS-headphones without aptX, synchronization of sound between devices will be impossible.
Method 1: Dual Audio feature in new Xiaomi models
Starting with MIUI 13 and Snapdragon 8 Gen 1/2 chips, Xiaomi has added Dual Audio support for flagship models.The feature is available on the following devices:
- π± Xiaomi 12/12 Pro/12S Ultra and newer
- π± Redmi K50 Pro/K60 Pro
- π± POCO F4 GT/F5 Pro
- π± Black Shark 5 Pro (with firmware) MIUI)
To activate the mode, follow the steps:
- Open Settings β Connections and Sharing β Bluetooth.
- Put the first pair of headphones on.
- Slap the icon. βοΈ Next to the device name and select Additional settings.
- Activate the dual audio switch.
- Connect the second pair of headphones β the sound is automatically duplicated.
Does your Xiaomi Snapdragon 8 Gen 1/2 support?
Is MIUI 13 or newer installed?
Are both pairs of headphones connected in A2DP mode?
Developer mode activated (optional, but recommended)-->
An important caveat: even supported models can have up to 200ms of latency between headphones, due to the SBC codec, which is the default one, to reduce the lag:
- Go to Settings β About Phone β MIUI version and tap 7 times to activate Developer Mode.
- Go back to the Settings β Additional β Developer settings.
- Find the Bluetooth Codec option and select aptX or LDAC (if supported by headphones).
β οΈ Note: On models with a MediaTek chip (for example, Redmi Note 12 Pro), Dual Audio may not be available even in the same model. MIUI 14.In this case, use methods 2-5.
Method 2: Using a Bluetooth splitter (hardware solution)
If your Xiaomi doesnβt support Dual Audio at the software level, the most reliable solution is a Bluetooth splitter (such as the Avantek BTA-200 or 1Mii B06 Plus), a compact device that connects to your phone via Bluetooth and then relays the signal to two pairs of headphones at once.
Advantages of the method:
- π§ It works with all Xiaomi models (including Redmi). 9A and POCO M3).
- π Low power consumption (the splitter lasts up to 10 hours from the built-in battery).
- π΅ Support for aptX Low Latency codecs (minimizes audio latency).
- π The ability to connect up to 4 devices at a time (e.g. headphones) + column).
Instructions for setting:
- Turn on the splitter and put it in pairing mode (usually the power button is held for 3-5 seconds).
- On Xiaomi, open Settings β Bluetooth and connect to a splitter (e.g., B06 Plus).
- Activate the pairing mode on the headphone splitter (see the instructions for the device).
- Turn the two pairs of headphones into a splitter.
| Brancher model | Price (2026) | Max. Devices. | Support for aptX | Sound delay |
|---|---|---|---|---|
| 1Mii B06 Plus | ~3 500 β½ | 2 | Yes. | <40 ms |
| Avantek BTA-200 | ~2 800 β½ | 2 | No. | <100 ms |
| Trond BT-DUO | ~4 200 β½ | 4 | Yes (LL) | <30 ms |
| Taotronics BA01 | ~3 000 β½ | 2 | No. | <80 ms |
π‘
If the splitter is producing noise or cracking, try turning off the microphone in the headphones (HFP mode) and only use the A2DP profile.
Method 3: applications for sound duplication (without root)
For devices running MIUI 12-14 without Dual Audio hardware support, you can use third-party applications.
- π΅ SoundAssistant (from Samsung, works on Xiaomi via Samsung, and ADB).
- π Bluetooth Dual Audio (requires Android 10)+).
- π§ Bose Connect (Bose Headphones Only).
The most versatile solution is SoundAssistant. Install it from APKMirror (not available in Google Play) and set it up:
- Download. APK-SoundAssistant file and install it by allowing installation from unknown sources.
- Put the first pair of headphones on.
- Open the app and go to Double Audio.
- Activate the function and connect the second pair of headphones.
Limitations of the method:
- β οΈ On some Xiaomi models, the sound may be interrupted when switching tracks.
- β οΈ Latency between headphones reaches 300-500 ms (not suitable for watching video).
- β οΈ The application may conflict with MIUI Optimizations β Disable them in the developer settings.
How to turn off MIUI Optimizations?
Dual Audio Officially In The World MIUI|Bluetooth splitter|Application side (SoundAssistant, etc.)|I haven't tried it yet.|Another way.-->
Method 4: Use AUX-splitter + Bluetooth transmitter
If your Xiaomi is equipped with a 3.5 mm connector (for example, Redmi Note 10 Pro or POCO X3 Pro, you can organize the duplication of sound through AUX-This method guarantees zero latency between the headphones, but requires additional equipment.
Devices required:
- π 3.5 mm AUX-splitter (e.g, UGREEN 30338).
- π‘ Bluetooth transmitter with aptX Low Latency support (e.g. Creative) BT-W5).
- π§ One pair of wired headphones (or headphones with a AUX-cable).
Connection diagram:
[Xiaomi] β (3.5 mm) β [AUX-brancher] β [Wired headphones]
β
[Bluetooth- Transmitter β [Wireless headphones]Step-by-step:
- Connect. AUX-telephone-spunter.
- At one exit of the splitter connect wired headphones.
- Connect a Bluetooth transmitter (e.g., Creative BT-W5) to another output.
- Activate the transmitter and connect the second pair of headphones to it via Bluetooth.
- In the transmitter settings, select Low Latency (if supported).
β οΈ Note: Some Xiaomi devices (such as the Redmi Note 11) automatically turn off the sound in the 3.5 mm connector when connecting Bluetooth devices. To avoid this, turn off all other Bluetooth devices in the phone settings before connecting the transmitter.
Method 5: root access and modification of system files (for advanced)
If youβre willing to take drastic measures, rooting and editing system files will allow you to activate Dual Audio even on incompatible models, a technique that works for MIUI 12-14 based on Android 10-13.
Requirements:
- π± Phone with unlocked bootloader.
- π§ Established recovery TWRP.
- π οΈ Root access (via Magisk).
- π» PC with installation ADB and Fastboot.
Instructions:
- Install Magisk and get root access.
- Download the Dual Bluetooth Audio Enabler module for Magisk.
- Install the module via Magisk Manager and restart the phone.
- Open Settings β System β Additional β Developer settings.
- Find the Enable Dual Bluetooth Audio option and activate it.
- Connect two pairs of headphones - the sound will be duplicated.
π‘
Modifying system files can cause Bluetooth to be unstable or communication to be lost completely. Before making changes, back up /system partition via TWRP.
Alternative method (without the Magisk module):
- Connect your phone to your PC and activate ADB.
- Adb shell settings put global settings bluetooth_dual_audio_enabled 1
- Reset the device.
If the function does not appear after these actions, check the support of the chipset:
adb shell dumpsys bluetooth_manager | grep "Dual Audio"If supported: false is present in the answer, your CPU does not support Dual Audio at the hardware level.
Comparison of all methods: which one to choose?
To determine the best method, evaluate your priorities:
| Criteria | Official Dual Audio | Bluetooth splitter | Applications (SoundAssistant) | AUX + transmitter | Root access |
|---|---|---|---|---|---|
| Compatibility | Only flagships 2022+ | Any model you want. | MIUI 12β14 | Models with a 3.5 mm connector | Any (with a rue) |
| Sound delay | 100-200 ms. | 30-100 ms. | 300-500 ms. | 0 ms. | 50-150 ms. |
| Cost | Free of charge. | 2 500β4 500 β½ | Free of charge. | 1 500β3 000 β½ | Free (but at risk) |
| Difficulty setting up | β | ββ | ββ | βββ | ββββ |
π‘
For most users, the optimal solution will be a Bluetooth splitter - it combines versatility, low latency and ease of customization. Official Dual Audio is suitable only for owners of new flagships, and root access is recommended exclusively for advanced users.