How to get two Xiaomi headphones to work at the same time: official and informal methods

If teams ADB Not applicable, check: - Is the Developer Mode enabled (Settings) → The phone. → Version. MIUI — Apply 7 times - Is debugging allowed USB In Settings → Additionally. → For developers - Are drivers installed ADB on PC (download Minimal) ADB and Fastboot)-> Method 3: Hardware splitter (if software methods don't work) If none of the methods worked, buy a Bluetooth transmitter with Dual Link support (for example, Avantek). BTC-500). It connects to the smartphone via a wire (3.5 mm or more). USB-C) It transmits sound to two wireless devices at the same time. ~100 ms 4. Problem Solving: sound only goes to one earphone or there are delays Frequent complaints when using Dual Audio: Problem Possible cause Sound only in one earphone of the second pair Bluetooth profile conflict (A2DP vs HFP) In Bluetooth settings, turn off Calls through headphones for the second pair of Sound Delay (~500 (ms) Outdated codec is used SBC Install the codec. AAC or aptX in Bluetooth Settings → The headphones are also disconnected through 5-10 minutes of energy saving MIUI Turns off Bluetooth backgrounds Add Bluetooth app to battery exceptions (Settings) → Battery → Optimization: It is not possible to connect the second pair of connected device limits (usually 7) Remove unnecessary devices from the list of associated 🔹 Next Next post: Xiaomi Mi True Wireless Earphones 2 (model TWS2), They don’t support Dual Audio at the firmware level. The only way out is to use a hardware splitter. 5. Reset Bluetooth settings: When nothing helps If the sound is interrupted or the headphones are not synchronized, perform a full reset of the Bluetooth module: Open Settings → Annexes → App management. Find Bluetooth in the system application list. → Clear the cache and clear the data. Reboot the smartphone. Reconnect the headphones (first pair, then second pair). ⚠️ Warning: After reset, all the associated devices (columns, watches, car systems) will be removed. MAC-If the reset didn't work, try rolling back the firmware to an older version. MIUI (for example, MIUI 14 on MIUI In some cases, Dual Audio bugs appear after updates. 6. Features for specific models Xiaomi Some smartphones and headphones Xiaomi have unique nuances: 📱 POCO F3/F4: Dual Audio only works after Bluetooth Absolute Volume is disabled (via the Bluetooth Absolute Volume feature). ADB: adb shell settings put global bluetooth_abs_vol_enabled 0). 🎧 Xiaomi Buds 3 Pro: Supporting LE Audio, but for stable operation requires firmware smartphone not lower MIUI 13.5. 📱 Redmi Note 10 In some regional firmware, the Dual Audio item is hidden - you need to switch to Global ROM. 🎧 Mi AirDots 3: When connecting two pairs, an echo may occur - turning off the microphone in the headphone settings will help. 💡On smartphones with Snapdragon chip 860/870 (for example, POCO F3) Dual Audio is more stable than on devices with MediaTek Helio (for example, Redmi Note). 11). 7. The future of Dual Audio: what to expect from Xiaomi 2026–2026? With the release of HyperOS Xiaomi began to actively implement support LE Audio and LC3-And that's a codec that allows you to plug in up to a few pairs of headphones without any delay: 🆕 New models: All smartphones on HyperOS 2.0 (autumn 2026) will receive built-in support for Audio Sharing (as in iOS). 🎧 Headphones: Xiaomi Buds 5 and later will support Aurosync – technology synchronization of sound between several devices. 🔄 Updates: Older models (such as Mi 11) promise patch support LE Audio through OTA. If you are planning to buy new headphones, pay attention to models with Qualcomm chips QCC514x or BES 2700 – They are guaranteed to support Dual Audio at the hardware level. FAQ: Frequent questions about connecting two Xiaomi headphones Can two wired headphones be connected to Xiaomi via a splitter? Technically, yes, but: Xiaomi smartphones without a 3.5mm connector (such as the Mi 11) do not support audio output to two wired devices at the same time. On models with a connector (such as the Redmi Note 10), you can use a Y-split, but the sound will be mono, not stereo. For a full stereo, an external sound card is required (for example, a sound card, USB-C DAC). Why does it make the sound quieter when you connect two headphones? A2DP — The smartphone distributes the signal power between two devices. Solutions: Turn on the Amplifier in the headphone settings (if any). Use a uniform equalizer (in the headphone settings). MIUI: Settings → Sound. → Try another codec (e.g. aptX instead of aptX). SBC). Does Dual Audio work on Xiaomi smartphones with custom firmware (LineageOS, Pixel Experience)? Yes, but with reservations: On LineageOS 20+ Dual Audio is enabled through Settings → Connected devices → Bluetooth → Pixel Experience may require manual activation via ADB (Adb shell put global bluetooth_dual_audio_enabled 1). On some builds (like HavocOS) the function is missing due to Bluetooth driver issues. 🔹 Important: Before installing custom firmware, check if it supports Bluetooth HAL For your model (information is available on the forum) XDA Can I use two Xiaomi headphones on an iPhone? No, the iPhone does not support connecting two pairs of Bluetooth headphones at the same time (iOS restriction, 1Mii B06 Connect one headphone over Bluetooth and the second through a Lightning adapter (sound will be unsynchronized). Xiaomi headphones with support LE Audio (like Buds 4) can be connected to iPhones and Macs at the same time, but the sound will be duplicated rather than added. How do I check which Bluetooth codec my headphones use? Install the Bluetooth Codec Changer app (root required) or Developer Options: Turn on the developer mode (tap 7 times according to version) MIUI In Settings → About the phone. Open the settings. → Additionally. → For developers → Bluetooth codec. Connect your headphones and watch the current codec (SBC, AAC, aptX, etc.). 🔹 Tip: For minimal delays, choose aptX LL (if maintained).