Siren's Lure

•While attuned, you gain advantage on Charisma (Performance) and Charisma (Persuasion) checks.
•As an action, you can sing a haunting melody. Each creature of your choice within 30 feet must succeed on a DC 15 Wisdom saving throw or be charmed by you for 1 minute (once per long rest).
•While wearing the pendant, you can breathe underwater and have a swimming speed equal to your walking speed.

A pendant shaped like a shimmering seashell that emits a soft, melodic hum when held.