What is ANC? ACN stands for Active Noise Cancellation. ACN uses microphones and speakers to reduce background and surrounding noises. This is the most known type and has mostly been used in over-ear headphones.
Also it is an abbreviation for African National Congress, a political group in South Africa that supports the rights of black people.
References: ▪︎ What is ANC – How does Noise Cancellation work? – Bang & Olufsen: https://www.bang-olufsen.com/en/us/story/active-noise-cancellation | ▪︎ ANC: https://dictionary.cambridge.org/dictionary/english/anc | ▪︎ The best true wireless earbuds for 2023: top AirPods alternatives today: https://www.techradar.com/news/best-true-wireless-earbuds-the-best-airpod-alternatives-around