Constrict Voice

You attempt to prevent a creature within range that you can see from being able to speak. The target must make a Charisma saving throw. On a failed save, the target is silenced and unable to speak or provide verbal components for spells. At the end of each of the target's turns, it can make a Charisma saving throw against the spell. On a success, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature for each slot level above 3rd. The creatures must be within 30 feet of each other when you target them.