Two of the most confusing letters in earbud marketing are ENC and ANC. They look almost identical, they both mention “noise cancellation,” and stores love to slap both on a product page. But they solve two completely different problems — and knowing the difference can save you from overpaying for a feature you’ll never use.
The short answer
- ENC (Environmental Noise Cancellation) cleans up your voice for the person on the other end of a call. It works on the microphone.
- ANC (Active Noise Cancellation) quiets the world around you so you can listen in peace. It works on what you hear.
One is about being heard clearly. The other is about hearing less background noise. That’s the whole distinction.
What ENC actually does
When you’re on a call outdoors, your earbud’s microphone picks up everything — wind, traffic, a barking dog, café chatter. ENC uses tiny extra microphones and smart processing to separate your voice from that background and send only you to the other person.
If you take a lot of calls, join voice chats while gaming, or record voice notes on the go, ENC is the feature that makes people say “wow, I can actually hear you clearly” instead of “you’re breaking up.” Many quality budget earbuds now include 4 ENC microphones, which is genuinely useful.
What ANC actually does
ANC works in the opposite direction. It uses microphones to listen to the noise around you — a plane engine, a train, an office hum — then generates an inverse sound wave that cancels it out before it reaches your ears. The result is a quieter listening experience so you can hear music at lower volumes.
ANC shines for frequent flyers, commuters, and anyone working in a noisy environment. It’s a more expensive technology to do well, which is why true ANC usually appears on pricier earbuds.
Side-by-side comparison
| ENC | ANC | |
|---|---|---|
| What it improves | Your voice on calls | What you hear |
| Works on | The microphone | Your listening experience |
| Best for | Calls, voice chat, gaming | Flights, commutes, noisy offices |
| Typical price impact | Common on budget earbuds | Usually costs more |
Which one do you actually need?
- You mostly take calls or game with voice chat? Prioritize ENC. Clear voice pickup matters more than silencing your surroundings.
- You mostly listen to music on planes or a noisy commute? Look for ANC.
- You do a bit of everything? ENC covers the everyday essentials, and many people find they don’t need to pay the ANC premium for casual use.
The most common mistake is paying extra for ANC when what you really needed was a good ENC mic for calls. Match the feature to how you’ll actually use your earbuds.
Frequently asked questions
Can earbuds have both ENC and ANC?
Yes, premium models often include both. But plenty of great budget earbuds include strong ENC without ANC — which is perfect if calls are your priority.
Does ENC help while listening to music?
Not directly — ENC only affects the microphone (your outgoing voice). For a quieter listening experience, you’d want ANC or a good in-ear seal.
Is ENC worth it?
If you take calls or use voice chat, absolutely. It’s one of the highest-value features on affordable earbuds.
Looking for great ENC earbuds?
Our Bluetooth 5.3 Wireless Earbuds feature 4 ENC microphones for crystal-clear calls, plus IPX7 waterproofing and up to 40 hours of total battery. Browse the full collection — fast U.S. shipping and 30-day returns.