|This object exists primarily or exclusively within the Sonic Underground continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
The Frequency Harmonizer is an object that appears in the Sonic Underground television series. It is a device used to bypass security panels.
The Frequency Harmonizer is a grey, circular device with a t-shaped orange marking on it.
Features and traits
The Frequency Harmonizer can be used to bypass hi-tech security panels.