From Pathfinder #164: Hands of the Devil, which isn't enabled.

Folding Drums

ITEM 5

Price 160 gp

Usage held in 1 hand

Bulk 1

You can unfold this virtuoso percussion instrument into a hand drum (1 Bulk), a marching drum set with a shoulder harness and back brace (3 Bulk), or a large standing drum set with a built-in stool (16 Bulk). Changing the folding drum's size is a 3-action Interact activity, and the drums must have sufficient open space to accommodate their new size.

Activate Interact (concentrate)

Frequency once per hour

Effect You play a pounding rhythm on the drum. If the next action you use is to cast a composition cantrip that has an emanation, increase the area of the emanation by 30 feet.

Pathfinder #164: Hands of the DevilOGL