Body mics, that you could 'wear', or plant on someone else. Would be revealed by being frisked by someone else, catching someone else planting it on you, or stripping naked. Let you hear any conversations in the same room as the mic'd person.
One where the "puppet" is in full control to shutoff and activate there feed as desired.
One where the "puppetmaster" is in full control and can also activate/deactivate cyberware at will. i.e. Imagine having your own psychokiller slave with a cortex bomb and behavior modification chip to keep them in line.
It's basically just a reverse Video Transcoding Chip with a little more control.
Guy A: "Why won't this fucking immy take his mirrorshades off?"
Mona B: "Cause he workin' for tha Oracle, that why!"
Guy A: "That true? You a Sensor, bitch?"
Immy: "W-What...? No, I'm just, look, I just arrived from the North Pacific Economic Compact. I'm Gerald, I've been looking for--"
Guy A: "Uh huh."
BLAM BLAM BLAM!
Mona B, pulling the mirrorshades off the corpse: "Huh. No Saedor eye on dis 'yama. He ain't no Sensor."
Guy A: "I guess he just liked mirrorshades."
Mona B, putting on the mirrorshades: "I DO fink it bright out. Aww ye', dis bettah, dis click bettah."
Solo C reveals his hiding location and steps out into view.
Solo C: "What do we got here, a couple Sensors? You bakas livin' on the Oracle's fold?"
Et cetera.
