"Hexagon Speaker Box sounds like a boy, even though she's a girl, and that's just... WRONG!" — Pen
This character's gender hasn't been revealed within BFDI or by jacknjellify. When editing, use singular they pronouns when referring to the character. If the gender has been revealed, please provide a source when adding it.
Hexagon Speaker Box is an almost silent speaker box that debuted in "Hurtful!". When it appeared, it said "We are also clones!" along with the Triangle Speaker Box.