Hello abuzar133,
Thank you for using Apple Support Communities! I see that a microphone icon is appearing in the menu bar on your Mac and you're wondering how to remove it. I would be happy to help.
Since the screenshot that you provided indicates the WhatsApp website is currently using your microphone, I'd like to have you quit Safari and restart your Mac:
- Quit apps on Mac - Apple Support
- Log out, sleep, restart, or shut down your Mac - Apple Support
If the microphone still appears after, visit the WhatsApp website again in Safari. Once you have the website pulled up, follow the steps under the "Customize the active website" section to turn off microphone access:
Customize settings for each website in Safari on Mac - Apple Support
Let us know what happens after trying those steps.
Cheers!