The Hero Dial is a magical amulet that has the ability to grant superpowers to the user temporarily. It appears in issue #52 of Teen Titans Go! comic series.
Description[]
The dial has four buttons: 'H', 'E', 'R' and 'O'. By dialing 'H-E-R-O', its user will be granted superpowers, albeit borrowing the powers from another superhero. These powers last for one hour, or when the user dials the code backwards (O-R-E-H).
History[]
This amulet was discovered by Robby Reed, who began to use the superpowers to fight crime across Jump City, defeating Punk Rocket as Changeling and Billy Numerous as Jesse Quick. However, he was unaware that the amulet actually borrowed powers from the Teen Titans themselves.
Robby Reed was later approached by the Teen Titans. He realized his mistake and returned the amulet to the Titans.