[quote=@13org]Anya slipped the Third Eye in the pocket of 2 different guys. If they walk by each other... You know?[/quote]
You could either have it that the feedback from the smaller devices would be far less severe compared to her augment, for instance feeling like a prick with a needle rather than having a nail hammered through your hand, or you could have all the ThirdEyes on the same channel, so they wouldn't interefere with each other, but might interfere with Anya's main augment.

She'd then run into the problem of someone she'd tagged wandering in her direction, since she'd be at risk from feedback if they got too close to her, but this would just play into her need to keep her distance from targets so I'd see it as characterful for her design.