Xiaomi and Redmi have powerful multimedia capabilities that allow you to create a full-fledged speaker system literally from a pocket device. Often, you need to split the audio stream into two independent channels to listen to music, a movie or a podcast together using wireless headsets, this is especially true when traveling, when watching content together or during sports training as a couple.
Implementing this on MIUI or HyperOS devices requires understanding the specifics of Bluetooth protocols and Android system constraints. Unlike wired connections where you can use a simple splitter, wireless data transfer requires software emulation of multiple connections. In this article, we will discuss in detail how to connect 2 xiaomi headphones to a single signal source, what native system functions are and when you will have to resort to third-party solutions.
It’s worth noting that the success of the operation depends not only on the smartphone model, but also on the version of the operating system, as well as the type of headset used. Xiaomi implements various sound engine technologies in its devices, and the presence of Dual Audio feature can vary from model to model. We will look at all the available methods, from built-in system settings to the use of specialized applications to expand the capabilities of Bluetooth.
MIUI and HyperOS technical capabilities for dual sound
The MIUI shell and the new HyperOS are based on Android, which theoretically supports the connection of many peripherals. However, manufacturers often limit the number of simultaneously active audio channels to save battery power and reduce the load on the processor. In high- and mid-price Xiaomi devices, Dual Audio technology is often supported, allowing you to broadcast audio to two Bluetooth devices.
The functionality can be implemented in different ways. In some cases, the system allows you to connect two different models of headsets, in others, you need to use devices of the same brand or even the same model for perfect synchronization. It is important to understand that when you activate the dual output mode, the load on the Bluetooth module increases, which can lead to a slight increase in latency or decrease in the autonomy of the smartphone.
The effect of codecs on sound quality when connected to a dual connection
To check the availability of this feature on your device, you need to go to the Bluetooth settings. If the system does not offer a standard means to choose a second device for playback, this does not mean that the function is completely unavailable. It may be hidden in special menus or requires activation through an engineering menu, although the latter option is not recommended for ordinary users due to the risk of disruption of the work.
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Xiaomi’s native dual audio support depends on version MIUI/HyperOS and models of Bluetooth module installed in the smartphone.
Preparation of equipment and compatibility check
Before you start setting up, you need to make sure your equipment is ready for multi-connection, especially the headphones themselves. Most modern models of Redmi Buds, Mi True Wireless Earbuds and Xiaomi FlipBuds support standard communication protocols, but for two-on-one mode, devices that work independently or have a pairing mode for the second ear are best suited.
The second important aspect is the Bluetooth version on the smartphone. To ensure a stable audio stream to two devices, Bluetooth 5.0 and higher is desirable. Older versions, such as 4.2 or 4.0, may not be able to cope with the bandwidth required for two high-quality channels, leading to constant out-of-synchronizations and wheezing.
- 🎧 Make sure both sets of headphones are fully charged and are in pairing mode.
- 📱 Check the Bluetooth version in the smartphone specifications (Settings) → The phone).
- 🔄 Update your headphone firmware through the Xiaomi Earbuds or Mi Home app to the latest version.
- 📶 Turn off 2.4GHz Wi-Fi at setup time to eliminate radio interference on air.
It's also worth paying attention to which headsets you're planning to use, if they're fully wireless headphones (TWS), So each droplet often acts as a separate device, and then you can connect two pairs of them. TWS It can be perceived by the system as connecting four devices, which will create additional load. TWS-headset and one classic Bluetooth headset with a headband.
⚠️ Note: When trying to connect two pairs TWS-Headphones of one brand to one phone may have a conflict of addresses MAC, If they are trying to sync with each other, not with a smartphone.
Native Connection Method through Bluetooth Settings
The easiest and most secure way to try is to use the standard Android interface adapted to MIUI. This method does not require the installation of additional software and works at the system level. The algorithm of actions may vary slightly depending on the version of the shell, but the overall logic remains the same.
First, you need to put the first pair of headphones in pairing mode and connect them to the smartphone as usual. Make sure the sound is played correctly. After that, without turning off the first device, put the second pair in visibility mode. A new gadget should appear on the list of available devices.
☑️ Double-connection algorithm
In some versions of MIUI, after connecting the second device, a special icon appears in the notification panel or in the Bluetooth menu to select the audio output mode. If there is no such icon, try to play the media file and in the menu of the output device selection (usually located in the notification curtain or on the lock screen) check whether it is possible to activate the tick opposite the second device.
If the system offers to select a device rather than add it, then native support for Dual Audio in this firmware is limited, in which case the smartphone will work with only one active audio channel, switching between devices, but not duplicating the stream, which is standard behavior for many budget models.
| Smartphone model | MIUI version | Dual Audio support | Features |
|---|---|---|---|
| Xiaomi 13 / 14 | MIUI 14 / HyperOS | Complete. | Automatic codec switching |
| Redmi Note 12 | MIUI 13 / 14 | Partial | Manual activation required |
| Poco F5 | MIUI 14 | Complete. | Stable work with TWS |
| Xiaomi Mi 9 | MIUI 12 | Absent. | Third-party software required |
Using Xiaomi Sound App for Synchronization
For owners of Xiaomi and Redmi ecosystem devices, there is a special Xiaomi Sound app (formerly known as MI Sound or part of the Mi Link package), which allows you not only to configure the equalizer, but also to manage multiple connections, if such a feature is supported by a specific combination of smartphone and headsets.
Once the application is installed and launched, you need to log in to the Mi Account. The main menu often displays all the connected audio devices. If your device is compatible with the extended audio mode, the application settings may show "Double audio" or "Multi-point connection." Activating this switch initiates a search for a second device to create a pair.
The advantage of using proprietary software is to optimize delays. Xiaomi Sound algorithms can prioritize audio streaming by minimizing the out-of-synchrone between the left and right sides of a stereo system consisting of two different headsets.
Without these permissions, scanning devices may not work properly. If the app doesn't see the second pair of headphones, try clearing the app's cache in your Android settings and restarting the search.
⚠️ Note: Xiaomi Sound application may not work correctly on devices of other brands, even if they work on the basis of Android.
Third-party solutions and applications for Dual Audio
In cases where the built-in system fails to implement the task, third-party applications available in the Google Play Store come to the rescue. These programs use the Android API to force the multi-connection mode, bypassing some of the manufacturer's software limitations.
One popular solution is the Sound Assistant app (often found on Samsung devices, but there are similar ones for Xiaomi) or specialized utilities like Lesser AudioSwitch, which allow you to manually manage the routing of the audio stream, you can choose the option “Force Dual Audio” or similar, after which the system will try to use all available Bluetooth channels.
- 📲 Lesser AudioSwitch: Allows you to force Bluetooth on even if the system considers it inactive for a second device.
- 🔊 Audio Relayer: A dedicated application for transmitting sound between devices can be adapted to deliver stream.
- ⚙️ Bluetooth Connect: A utility for advanced connection management, allows you to fix the priority of devices.
Using third-party software has its own risks: such applications can consume additional battery power, as they constantly hang in the background, controlling the audio stream, and they can conflict with the system settings of the Dolby Atmos equalizer or Hi-Res Audio, if they are enabled.
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If a third-party app is causing system failures, try turning off the Battery Optimization option for that particular app in Android settings so the system doesn't shut down its process in the background.
Before installing any app, carefully read reviews and check the date of the last update. Developers must maintain compatibility with new versions of Android, otherwise the functionality may not work. Always check the access rights that the program requests.
Troubleshooting and sound desynchronization
Even when two pairs of headphones are successfully connected, users often face the problem of desynchronization, and the sound in one headset can lag behind the other by a fraction of a second, which creates an echo effect and makes listening unbearable, due to differences in signal processing and data buffering.
To minimize delays, it is recommended to disable options related to the absolute volume of Bluetooth in the developer settings, or, conversely, try to activate them, as the behavior may differ. Network settings reset also helps. Go to Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth.
If the desynchronization persists, try to lower the quality of the audio you transmit. In Bluetooth settings (in the developer menu), you can change the bitrate or codec. Switching from LDAC or aptX HD to standard SBC often solves the stability problem, sacrificing little quality but winning in synchronization.
adb shell settings put global bluetooth_enabled true
adb shell pm disable-user --user 0 com.android.bluetooth
adb shell pm enable com.android.bluetoothThis team (for advanced users with rights) ADB) It allows you to reboot the Bluetooth stack without restarting the entire phone, which sometimes helps to reset the module's erroneous states. ADB-The system can lead to unstable operation of the system.
⚠️ Warning: If you experience a strong heating of the smartphone in the area of the camera or the upper face, immediately turn off the second device.