Mobile Emitter
- Constructed in the 29th Century
- 1996: Henry Starling stole technology from the time ship Aeon
- He later hacked into the USS Voyager's computers and stole the Doctor
- Starling used the emitter to grant mobility to his captive
- Voyager kept the mobile emitter after being returned to the 24th century
- By 2401 a simpler version of the device were used by Starfleet Intelligence
- Self-contained holographic projector
- Constructed of a poly-deutonic alloy unknown to 24th century science
- Usually affixed to the exterior of the active holoprogram
- It could be covered or enveloped by the program, effectively hiding it from view