mysterious red microphone icon that I can't remove

https://preview.redd.it/snbzuzuqrgie1.jpg?width=1138&format=pjpg&auto=webp&s=832aec5630b40bb95ded87642f0ee5d05f7e6b4b this muted microphone icon start showing up on my MacBook air this morning which it doesn't seems to related to any app. I tried restarting and install the newest update but they didn't remove it. Anyone know how to get ride of this?