Open Roblox
Click the Settings icon (gear) or go to the Roblox Settings page
Select Privacy
Find Voice Chat
Set Voice Chat to On
If prompted, allow microphone access in your device/browser settings
Confirm your age/identity settings in Roblox (Voice Chat may require being eligible)
Join a game that supports Voice Chat
In-game, check the voice/chat options and ensure Voice Chat is enabled
If Voice Chat still doesn’t work, restart Roblox and verify microphone permission again