You weave a distracting string of words, causing creatures of your choice that you can see within range and that can hear you to make a Wisdom saving throw. Any creature that can't be charmed succeeds on this saving throw automatically, and if you or your companions are fighting a creature, it has advantage on the save. On a failed save, the target has disadvantage on Wisdom (Perception) checks made to perceive any creature other than you until the spell ends or until the target can no longer hear you. The spell ends if you are incapacitated or can no longer speak.
The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:
Duration: 1 minute → up to 1 minute.
It now requires concentration.
Casting time
Action
Range
60 feet
Components
V, S
Duration
Concentration, up to 1 minute
School
Enchantment
Level
2
Classes
Bard, Warlock
Tags
concentration
You weave a distracting string of words, causing creatures of your choice that you can see within range to make a Wisdom saving throw. Any creature you or your companions are fighting automatically succeeds on this save. On a failed save, a target has a −10 penalty to Wisdom (Perception) checks and Passive Perception until the spell ends.
2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.