Xiaomi AirDots 2: How to turn on noise cancellation and improve sound

Owners of Xiaomi AirDots 2 wireless headphones often face the desire to improve sound quality while talking or listening to music in noisy places. The question of how to turn on active noise cancellation is one of the most discussed in the community of users of budget acoustics. It is important to immediately clarify: this model is equipped with ENC (Environmental Noise Cancellation) noise reduction technology, which works exclusively during phone conversations, cutting off background noise for the interlocutor.

Many users mistakenly believe that these headphones should include an ANC (Active Noise Cancellation) system that allows you to completely isolate yourself from the outside world when listening to tracks. However, Xiaomi engineers position this model as an affordable solution, where the priority has been clear voice, not full sound insulation.

In this article, we will take a look at how to set microphones to maximize noise reduction, what nuances sensors have, and how to use hidden controls. You will learn why sound can appear deaf in a quiet room, and how to fix typical connection errors that interfere with the operation of voice purification algorithms.

Difference between ENC and ANC in Budget Models

The first step to understanding how your headphones work is to make a clear distinction between technology: The AirDots 2 (also known as the Redmi AirDots 2 or Mi True Wireless Earbuds Basic 2) doesn’t have any built-in active noise cancellation for music, which means that you’ll hear the hum of an airplane or the rumble of a subway on par with the music if you don’t turn the volume to maximum.

But the ENC technology here is very well implemented, and it uses built-in microphones to analyze and filter out the outside noise in real time during a call, and the person on the other end of the phone will hear your voice clearly, even if you're in a windy street or in a noisy office.

It's worth noting that Xiaomi's algorithms in this model are tuned to prioritize human speech, which means that background sounds like keyboard banging or wind noise will be suppressed aggressively while your voice remains natural. If you turn on music playback, noise cancellation automatically shuts down, skipping all external sounds.

⚠️ Warning: Don’t try to find the switch. ANC Xiaomi AirDots 2 does not have any hardware for active noise reduction of music, and it is not software-enabled to activate it.

How to activate and check the work of the ENC

The most important thing to learn is that the noise cancellation in Xiaomi AirDots 2 is automatically activated. You don't have to look for any buttons, touch combinations or special modes in the smartphone menu. Once you receive an incoming call or make an outgoing call, the system activates the voice clearing algorithms itself.

To test the effectiveness of the technology, you just need to run a simple test: call someone in a quiet room, and then, without interruption, go out onto a busy street or turn on the fan next to the microphone, and the interviewer must confirm that the background noise level has decreased significantly, and your voice has become dominant.

Sometimes users complain that noise cancellation is not working, most often due to the wrong location of the earphone in the ear, the microphone holes should be directed towards the sound source (your mouth), not closed with a finger or a collar of clothing, the correct fit is the key to quality communication.

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The noise reduction function in AirDots 2 does not require manual activation and only works in a phone call mode.

Control settings through touch touch touch

While you can't turn on the noise cancellation button, headphone functions are controlled through touch panels. Understanding the logic of sensors will help you answer calls faster, where ENC is useful. Xiaomi's standard firmware offers a limited but functional set of commands.

The following gestures are used to control playback and calls:

• 🎵 One touch: start/pause music or answer an incoming call.
• 📞 Double touch: Re-dialing the last number or activating the voice assistant.
• 🛑 Triple touch: Ending a current conversation or rejecting an incoming call.
• 🔊 Sensor retention (2 seconds): activate game mode (on some firmware versions) or start the assistant.

Don't push the earphone too hard to push the command -- a slight finger touch is enough -- if the sensor doesn't respond, the contact pad may have become contaminated and needs to be gently wiped with a dry wipe.

Resolving problems with microphone and echo

Even with an ENC, users can experience communication quality issues, often echoing themselves or having a choppy sound, which may not be due to a fault, but rather to the Bluetooth connection or codec version.

Let’s look at the main reasons for the deterioration of voice transmission:

• 📶 Unstable signal: Finding a smartphone in your trouser pocket when using a left earpiece (which is a master device) can shield the signal from the user's body.
• 🔋 Low charge: When the battery is below 15%, headphones can reduce transmitter power, which impairs communication quality.
• 📱 Codec Conflict: Some Smartphones May Incorrectly Switch Between Codecs SBC and AAC, delaying.

If you notice that the person is hearing an echo, try rebooting Bluetooth on your smartphone. Also effective is to completely reset the headphones to the factory settings. To do this, remove the headphones from the case, pinch the sensors on both devices for 5-7 seconds before the indicator flashes, and then forget the device in the phone menu and hide again.

⚠️ Note: When you reset your headphone settings, all saved pairs will be deleted. You will have to re-pair with all previously connected devices.

Comparison of characteristics of AirDots models

To better understand your model, it’s useful to compare it to other devices in the lineup. Many users confuse AirDots 2 with more advanced versions, expecting them to offer premium functionality.

As you can see from the table, full spectrum noise cancellation (ANC) only appears in Pro models. If it is critical for you to cut off subway or airplane noise while listening to music, you should consider upgrading to AirDots 3 Pro or FlipBuds Pro.

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To improve the quality of calls in windy weather, cover the microphone hole on the headphone case with your hand, creating a small windshield.

Secrets to improving sound quality

Despite the budget, Xiaomi AirDots 2 is capable of producing decent sound when set up correctly. First of all, make sure that the AAC codec is activated in your smartphone's Bluetooth settings (for iPhone owners, it is on by default and does not turn off), which will provide better detail of high frequencies.

Also worth noting is the Mi Wear app (or Xiaomi Earbuds), which, while it doesn’t give you access to an equalizer for this model, you can check the firmware version through it. Xiaomi engineers periodically release updates that improve connection stability and microphone algorithms.

Keep in mind headphone hygiene. The sulfur and dust that clogs the speaker and microphone can significantly distort sound and reduce noise reduction efficiency. Regular cleaning with a soft dry brush will help maintain acoustic properties at a high level.

Frequently Asked Questions (FAQ)