As a matter of course, S.H.I.E.L.D. is able to monitor a vast amount of electronic and online activity, but when they have a specific person they need to watch, they turn to this device. This bracelet appears simple and inconspicuous, but is able to monitor and limit the tagged person's access to certain systems, files and electronic devices. The tracking bracelet can also be used to identify and limit access to secure sections of S.H.I.E.L.D. facilities.