While you are Hidden, you experience the following effects:
Concealed. You aren’t affected by any effect that requires its target to be seen.
Surprise. If you are Hidden when you roll Initiative, you have Advantage on the roll.
Attacks Affected. Attack Rolls against you have Disadvantage, and your Attack Rolls have Advantage.
Ending the Condition. The Condition ends on you immediately after any of the following occurrences: you make a sound louder than a whisper, an enemy finds you, you make an Attack Roll, you cast a Spell with a verbal component, or you aren’t Heavily Obscured or behind any Cover.