Modern Xiaomi and Mi Box TVs offer excellent image quality, but the built-in acoustics don’t always satisfy users’ needs, especially when watching movies at night or playing games. Connecting external audio devices like headphones becomes a necessity for comfortable use of the multimedia center at any time of the day. This allows you to enjoy the content without disturbing others, and often significantly improves the detail of the sound scene compared to regular speakers.
The synchronization process depends on your device model and the type of headphones you use, wired or wireless. The Android TV operating system on which Xiaomi TVs are based, implements flexible audio output settings that allow you to switch between sound sources without rebooting. In this guide, we will detail all possible ways to connect, from the classic 3.5 mm connector to modern Bluetooth 5.0 protocols.
Before you get to the settings, make sure your headphones are charged and in pairing mode. For wired models, it is easy to check the integrity of the cable and plug. Proper preparation of the equipment at the initial stage will save time and help avoid common mistakes when searching for a device in the TV menu.
Preparation of equipment and compatibility check
The first step should always be to check the specifications of your Xiaomi TV. Different models can have a different set of ports: some are equipped with a combined connector. AV/Mini-Jack, Others have full optical output S/PDIF, And some people rely solely on wireless technology, and looking at the back of the device or the documentation will help determine which interfaces are available for use.
If you plan to use wireless headphones, it is critical to make sure that they support the A2DP (Advanced Audio Distribution Profile) profile. This is the standard responsible for transmitting high-quality stereo sound. Monoheadsets or older models without this profile support can connect, but the sound will be absent or transmitted in low quality.
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Use headphones with support for aptX Low Latency codec to minimize audio delay when watching videos or games.
For wired connectivity, pay attention to speaker resistance. Xiaomi TVs usually have standard output on headphones with impedance up to 32 ohms. Connecting studio headphones with high resistance (250 ohms and above) without an external amplifier will result in a very quiet sound devoid of bass.
Connecting wired headphones through a 3.5 mm connector
The easiest and most reliable way to get personalized sound is to use a wired connection. Most Xiaomi Mi TVs come with a combined connector, often labeled as an AV or with an earphone icon. You may need a special adapter to connect if the plug on your headphones doesn't match the type of socket on the TV.
Once the cable is physically connected, Android TV will usually automatically recognize the new device, the sound from the built-in speakers will switch to the headphones, if that doesn't happen, you'll need to manually change the audio output settings in the system menu, sometimes you need to press the confirmation button on the remote to activate the new output channel.
☑️ Checking wired connection
In some cases, especially on older versions of firmware, automatic switching may not work, so you go to Settings, select Sound or Display & Sound, and in the Dynamics category, select Headphones or Audio System, which will force the audio stream to the external connector.
Setting up Bluetooth headphones on Android TV
Wireless connectivity provides maximum comfort and no unnecessary wires in the interior. To start, put your headphones in pairing mode (usually this is done by holding the on button for a long time until the indicator flashes). On the TV, go to the Settings menu → Remote and accessories (or Bluetooth).
In the list of available devices, select the name of your headphones. The pairing process takes a few seconds, and after a successful connection, the system will confirm this with an audible signal or a text notification.
⚠️ Attention: When you connect Bluetooth headphones, the sound on the TV's built-in speakers completely turns off. You can only return it by turning off the headphones or selecting another source in the settings.
If you don't find the device, try bringing the headphones closer to the TV (less than 1 meter away) and re-search, and it's also worth checking if the headphones are connected to the smartphone at this point, as they can automatically intercept the connection to the phone instead of the TV.
Use of the USB-adapters and optical output
The built-in Bluetooth module in Xiaomi TVs may sometimes not support the latest codecs or have a limited range. USB-Adapter (whistling) with aptX support. The device connects to the port USB, and the system recognizes it as a standard audio output device.
For audiophile solutions, you can use the optical output of S/PDIF. Since the headphones do not have optical input, you will need an external digital-to-analog converter (DAC). The connection circuitry looks like: TV (Optical) → DAC → Headphones. This provides the best sound quality, since digital processing is done by an external device.
| Connection method | Sound quality | Delay (Latency) | Convenience |
|---|---|---|---|
| Wire (3.5 mm) | Medium/Good | Absent. | Low (wires) |
| Bluetooth (SBC/AAC) | Good. | High (150-300 ms) | High. |
| Bluetooth (aptX LL) | Excellent. | Low (<40 ms) | High. |
| USB DAC / Optics | Hi-Res/Great | Minimum | Average. |
When using external DAC or USB-Adapters may need to include a function OTG In the settings of the TV, although on most Xiaomi models it is active by default. Make sure that the audio file or stream format is compatible with the capabilities of your external decoder.
Eliminating Sound Delay and Dissynchronization
One of the major problems with wireless connectivity is the desynchronization of audio and video. You can see the actors' lips moving, but the sound comes late. This phenomenon is called Latency. To minimize it, the Xiaomi TV's audio settings often have a "Game Mode" or "Low Lag" option that prioritizes data rate.
If the software settings don't help, the problem may lie in the codec. The default SBC codec has the most latency. If your headphones and TV support aptX Low Latency or aptX Adaptive, be sure to activate them in the developer menu or special Bluetooth settings (if available).
The secret settings of the developer
It’s also worth trying to disable any sound effects, such as Dolby Audio or equalizers, which can add extra processing and increase latency. Direct Output often solves the problem of desynchronization.
Solution: No sound or no device visible
It's not uncommon for the TV to see headphones or not beam sound, and it's often because of the Bluetooth cache, so try to reboot the TV completely by disconnecting it for 30 seconds, and it'll reset the radio's temporary errors.
If the problem persists, remove the device from the paired list and pair again. Make sure the TV has the latest version of MIUI for TV firmware installed. System updates often contain patches to improve compatibility with peripherals.
⚠️ Warning: Do not connect active noise-canceling headphones to the TV via cheap adapters, this can create electrical tips and background noise.
In extreme cases, if the built-in tools do not work, you can install a third-party application from the Google Play Store, such as Sound Assistant or analogues, which allow you to redirect audio streams to specific output devices, bypassing system restrictions.
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Connection stability is directly dependent on the Bluetooth version: module 5.0 and above provides better range and lower power consumption compared to version 4.2.