Yes, Beats Solo 4 have active noise cancellation, but it works differently than you might expect

The Beats Solo 4 include active noise cancellation (ANC), which means the headphones use microphones and speakers to reduce outside sound rather than just blocking it physically. When you turn ANC on, the headphones listen to ambient noise around you—traffic, conversation, machinery—and play an inverted sound wave that cancels it out. This works best on steady, low-frequency sounds like airplane engines or air conditioning hum.

However, the Solo 4's noise cancellation is not as aggressive as you'll find on over-ear headphones like the Sony WH-1000XM5 or Bose QuietComfort 45. Because the Solo 4 are on-ear headphones (they sit on top of your ears rather than around them), they have less physical seal and smaller internal space for the noise-canceling technology. This means they reduce noise noticeably but don't eliminate it the way larger headphones do.

The headphones also have a transparency mode (called "Conversation Awareness" in Beats' app), which lets outside sound through so you can hear people talking or ambient alerts without removing the headphones. You can toggle between ANC on, ANC off, and transparency mode using the button on the side of the headphones or through the Beats app on your phone.

Key Takeaways

  • Beats Solo 4 have active noise cancellation that reduces steady background sounds like traffic and air conditioning, but it's less powerful than over-ear models because of their smaller size.
  • The headphones work best in consistent noise environments; they handle airplane cabins and offices better than chaotic environments like crowded trains.
  • Transparency mode lets you hear outside sound without removing the headphones, useful for conversations or hearing announcements.
  • You control noise cancellation through a physical button on the headphones or the Beats app, and you can switch modes when ready.

How the noise cancellation actually performs in real situations

On a flight or in a quiet office, the Solo 4's ANC noticeably reduces the constant drone of background noise, making it easier to focus or enjoy music at lower volumes. The reduction is real—you will hear a difference when you toggle ANC on and off. Most people describe it as taking the edge off rather than creating silence.

In unpredictable environments—a busy coffee shop, a crowded street, someone calling your name—the ANC is less effective. It struggles with sudden, high-pitched, or irregular sounds because the technology works by predicting and canceling repetitive patterns. A car horn or someone shouting will still get through. This is true of all noise cancellation, not just Beats; the physics of the technology has this limitation.

Battery life with ANC on is around 36 hours according to Beats' specifications, though real-world results vary depending on volume level and how much ANC you're using. With ANC off, you get longer battery life, but most people leave it on because the battery lasts long enough that it's not a practical trade-off.

Comparing Solo 4 noise cancellation to other headphone types

On-ear headphones like the Solo 4 sit on your ears but don't fully cover them. Over-ear headphones (like the Beats Studio Pro or Sony WH-1000XM5) surround your entire ear and create a better seal, which means they block more ambient noise passively and give the ANC more room to work. The difference is noticeable: over-ear models typically reduce noise by 15 to 25 decibels, while on-ear models usually reduce it by 10 to 15 decibels.

Earbuds with noise cancellation (like AirPods Pro) are smaller still, so they reduce even less noise than on-ear headphones, but they're more portable and less visible. The Solo 4 sit in the middle: better noise cancellation than earbuds, worse than over-ear headphones, but more comfortable for extended wear than earbuds for many people.

If noise cancellation is your main priority and you'll be wearing headphones for hours in loud environments, over-ear headphones are the better choice. If you want decent noise cancellation in a more portable, less bulky form factor, the Solo 4 deliver that trade-off reasonably well.

What "active" noise cancellation means versus passive isolation

Passive isolation is just the physical blocking that happens because something is covering your ear—like earplugs or the seal of over-ear headphones. Active noise cancellation is the technology that listens to sound and cancels it electronically. The Solo 4 use both: the physical design of the headphones blocks some sound passively, and the ANC system reduces more sound actively.

You can test this yourself: turn ANC off on the Solo 4 and you'll still hear some noise reduction from the headphones just sitting on your ears. Turn ANC on and the reduction increases. The difference between those two states is the active part.

How to use noise cancellation on Beats Solo 4

There's a physical button on the left ear cup (the side that faces your head) that cycles through ANC on, ANC off, and transparency mode. Press it once to toggle between modes. You can also control it through the Beats app on your iPhone or Android phone, where you can see which mode is active and switch modes without touching the headphones.

Some people prefer the physical button because it's faster and doesn't require your phone. Others prefer the app because they can see the battery level and adjust other settings at the same time. Both work equally well; it's just a matter of what's convenient for you in the moment.

The headphones remember which mode you last used, so if you turn them off with ANC on, they'll turn back on with ANC on the next time you use them. If you want ANC off by default, you can change that in the app settings.

When noise cancellation drains battery faster and what to do about it

Active noise cancellation uses extra power because the headphones are constantly running microphones and processing sound. With ANC on, the Solo 4 last around 36 hours. With ANC off, they last longer, though Beats doesn't publish a specific number for ANC-off battery life. The difference is noticeable but not dramatic—you're not looking at cutting battery life in half.

If you're in an environment where you don't need noise cancellation (a quiet room, a library, your home), turning ANC off will extend battery life slightly. If you're traveling or in a noisy space, the battery trade-off is usually worth it because you'll use the headphones more comfortably and at lower volumes, which also saves power.

The Solo 4 charge via USB-C, and a full charge takes about 2 hours. You can use them while they're charging, so you don't have to wait if you need them urgently.

Frequently Asked Questions

Do Beats Solo 4 block all outside noise?

No. Active noise cancellation reduces steady background sounds significantly but doesn't eliminate all noise. Sudden sounds like car horns, loud voices, or alarms will still get through. If you need complete silence, over-ear headphones with stronger ANC or foam earplugs will work better.

Can I use noise cancellation with any audio source?

Yes. Noise cancellation works independently of what you're listening to—music, podcasts, calls, or silence. You can turn ANC on and listen to nothing, or listen to music with ANC on. The two features don't interfere with each other.

What's the difference between transparency mode and just turning ANC off?

With ANC off, you hear the world around you but the headphones don't amplify it. With transparency mode on, the headphones actively pick up outside sound through their microphones and play it back to you, sometimes amplifying it slightly so you hear conversations more clearly. Transparency mode is better for quick interactions; ANC off is better if you want to wear the headphones without any processing.

Do I need to update the Beats app to use noise cancellation?

No. Noise cancellation works with just the physical button on the headphones—you don't need the app at all. The app is optional and mainly useful for seeing battery level, switching modes without the button, and adjusting other settings like sound balance.

Will noise cancellation work if my headphones are low on battery?

Yes, but as the battery gets very low (below 5 percent), some features may degrade. The headphones will alert you when battery is low, and you should charge them soon after. Noise cancellation will work normally until the battery is nearly dead.