ENC stands for Environmental Noise Cancellation, which is a technology commonly found in headphones and earbuds with a microphone. ENC is a passive noise-cancellation technology that uses microphones to detect external sounds and creates an opposite sound wave to cancel them out. This technology is typically used to reduce background noise during phone calls or when listening to music in noisy environments. ENC is designed to ensure that when you’re making phone calls or recording your voice, everything is crystal clear and easy to hear. It is primarily beneficial for calls, ensuring clarity through ENC, which effectively suppresses 90% of reverse ambient noise, thus reducing ambient noise by up to 35dB or more.