What is ENC? November 04, 2022 03:22 Updated ENC stands for Environmental Noise Cancellation. It is specially tuned to remove unwanted background noise while using the microphone. For your microphone, ENC ensures others don't hear your background noise when speaking. Related articles How does the built-in timeout feature work? What is Clear Voice (ENC)? Which Bluetooth sound codecs are supported by Ear (stick)? How to reset Phone (1) to factory settings? How many devices can Ear (stick) be paired with?