Active Noise Cancellation turns on in Settings, not with a physical button
AirPods Pro and AirPods Max have Active Noise Cancellation (ANC) built in, but it does not turn on automatically. You control it through your iPhone, iPad, or Mac settings, or by using the Control Center shortcut on your device. On AirPods Pro, you can also press and hold the stem (the stick part) to switch between noise cancellation modes without opening settings.
The feature works by having tiny microphones on the AirPods listen to the sound around you, then play an inverted sound wave through the speaker to cancel it out. This works best on steady, predictable noise like airplane engines, air conditioning, or traffic. It does not work as well on sudden sounds or human voices.
Standard AirPods (the non-Pro version) do not have active noise cancellation. They have passive isolation instead, which just means the physical shape of the earbud blocks some outside sound the way earplugs do.
Key Takeaways
- Active Noise Cancellation is a setting you turn on in Control Center or Settings, not a physical button on the AirPods themselves.
- AirPods Pro let you press and hold the stem to switch between Noise Cancellation, Transparency, and Off without opening your phone.
- Noise cancellation works best on constant background noise like engines and air conditioning, not on voices or sudden sounds.
- You can customize which mode appears when you long-press the stem, so you can skip modes you do not use.
How to turn on Noise Cancellation in Settings
On iPhone or iPad, open Settings, tap Bluetooth, find your AirPods in the list, and tap the information icon (the small circle with an i). Scroll down to find the Noise Control section. You will see three options: Noise Cancellation, Transparency, and Off. Tap the one you want to use right now.
On Mac, open System Settings, click Bluetooth in the sidebar, find your AirPods, click the information icon, and look for Noise Control in the same way. The steps are identical to iPhone.
Once you set a default mode, your AirPods will use that mode the next time you put them in your ears. You can change it anytime by going back to the same screen.
Using the Control Center shortcut for faster switching
If you switch between modes often, Control Center is faster than Settings. On iPhone or iPad, swipe down from the top right corner (or up from the bottom, depending on your model) to open Control Center. Look for the Noise Control icon — it looks like a circle with sound waves. Tap it to cycle through your active modes.
You can customize which modes appear in this cycle. Go to Settings, tap Control Center, scroll down to Noise Control, and tap the green plus sign to add it if it is not already there. Then go back to your AirPods settings (Bluetooth > your AirPods > information icon) and scroll to Noise Control to choose which modes you want the Control Center button to cycle through.
The difference between Noise Cancellation and Transparency mode
Noise Cancellation blocks outside sound so you hear mostly what is coming through your AirPods — music, a call, or silence if nothing is playing. Transparency mode does the opposite: it amplifies outside sound so you can hear your surroundings clearly while still wearing the AirPods. It is useful when you need to hear traffic, someone talking to you, or an announcement.
Transparency uses the same microphones as noise cancellation, but instead of cancelling the sound, it passes it through to your ears. Some people find it useful for one earbud in Transparency and one in Noise Cancellation, though this requires going into Bluetooth settings and setting each earbud separately.
Off mode disables both features and gives you just the passive isolation from the physical shape of the earbud.
When Noise Cancellation actually works well
Noise cancellation is most effective on low-frequency, steady sounds. Airplane cabins, train noise, air conditioning units, and highway traffic all drop noticeably when you turn it on. You will hear a real difference in these situations.
It is less effective on high-frequency sounds like a dog barking, a baby crying, or someone talking nearby. Human speech especially does not cancel well because voices change pitch and volume constantly. If you are trying to block out conversation in an open office, Transparency mode or just turning the volume up on your music will work better than noise cancellation.
Noise cancellation also uses battery faster than regular listening. On AirPods Pro, you get about 6 hours of listening time with noise cancellation on, versus 6 hours without it (the difference is small but real). On AirPods Max, the battery lasts longer overall, but noise cancellation still drains it faster than transparency mode or off.
Troubleshooting when Noise Cancellation is not working
If you turned on Noise Cancellation but still hear outside noise, first check that the AirPods are sitting properly in your ears. Noise cancellation needs a good seal — if they are loose or tilted, it will not work. Take them out and put them back in, making sure they sit flush in your ear canal.
If they are seated correctly and it still is not working, go to your AirPods settings and toggle Noise Cancellation off and back on. Sometimes the feature gets stuck and needs a reset. If that does not help, forget the AirPods entirely (in Bluetooth settings, tap the information icon and select Forget This Device), then pair them again from scratch.
Noise cancellation also performs worse when the battery is very low. If your AirPods are below 20 percent battery, charge them and try again. Some users also report that noise cancellation works better after a software update, so check that your iPhone and AirPods are both running the latest version.
Why your AirPods might feel uncomfortable with Noise Cancellation on
Some people feel pressure in their ears when noise cancellation is on. This is because the microphones are actively listening and processing sound, and your ear is responding to the pressure change. It is not dangerous, but it can feel strange if you are not used to it.
If this bothers you, try Transparency mode instead — it uses the same microphones but in a way that feels less pressurized to most people. You can also turn noise cancellation off entirely and just use the passive isolation. There is no rule that says you have to use every feature your AirPods have.
Frequently Asked Questions
Can I use Noise Cancellation on just one AirPod?
Yes. Go to Bluetooth settings, tap your AirPods, and scroll to Noise Control. You will see separate toggles for the left and right earbud. You can set one to Noise Cancellation and the other to Transparency or Off. This is useful if you want to hear your surroundings with one ear while listening to music with the other.
Does Noise Cancellation work if I am not playing music?
Yes. Noise cancellation works whether you are listening to music, on a call, or just sitting in silence. The feature blocks outside sound regardless of what is coming through the speaker. Many people use it just to reduce ambient noise without playing anything.
Will Noise Cancellation drain my battery faster?
Yes, but not by much. With Noise Cancellation on, AirPods Pro last about the same amount of time as without it in real-world use. The battery drain is noticeable over a full day, but you will not see a dramatic drop in a single hour of listening.
Why does Noise Cancellation sound weird sometimes?
If the seal is not perfect, noise cancellation can sound hollow or create a strange echo effect. This usually means the AirPods are not sitting properly in your ears. Try adjusting them or using a different size earbud tip if your model has them. Some people also find the effect takes a few minutes to feel normal.
Can I turn off Noise Cancellation permanently so I do not have to think about it?
Yes. Go to your AirPods settings, find Noise Control, and set the default to Off. Your AirPods will stay in Off mode until you manually change it. You can also remove Noise Control from your Control Center if you do not want the button to appear at all.