|This object exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
When Tails suspected the timeline of being altered, so he invented the armband to prevent his family from being erased. Around the same time, Lien-Da forced Cobar to make her an armband before the timeline was altered. (StH: #166)
Five years later, after former King Shadow had been released from suspended animation, he ripped off Lien-Da's armband so that her place in the timeline would change. Argyle is also shown wearing a green version of the armband. (SU: #7)