This constantly vibrating silver chime is inscribed with bizarre, alien musical notes.

A chime of harmonic agony allows you to channel musical power through your own body to wreak harm on your enemies.
When you activate the chime, you must spend one daily use of your bardic music ability and target a creature within 30 feet. The chime deals sonic damage equal to 3d6 + your Charisma modifier (Fort DC 16 half).
If you also wear a magic item that grants an enhancement bonus to your Constitution score, you can add the item’s bonus to the damage dealt by the chime.
A chime of harmonic agony functions three times per day.

Prerequisites: Craft Wondrous Item, shout.
Cost to Create: 1,500 gp (plus 100 gp for base item), 120 XP, 3 days.