Holographic Technology is the ability to project an image or 'hologram' of a person or object in real time to another location. It is used throughout the series in many ways.
The technology has been utilized by the court system to allow protective witnesses to testify from safe house locations. Captain Sandra Maldonado also used the technology to initially fool the Avery clones into thinking that Ethan Avery was being used in an exchange for Detective Valerie Stahl. A series of holo-projecters were used on the ceiling of the corridor in the County Jail.
The holographic butler, S.A.M., is an avatar for Synturion Smart Houses. Nico Galasso, a hacker, was able to confuse the android version of S.A.M. by projecting Detective John Kennex as multiple targets. 
Series // Concepts
Electronics // Weaponry
• Alarm Clock • Animatronic Toys • Biolock • DNA Bomb • Electronic Lock Breaker • Electronic paper • Electronic sticky note • Face Maker • Holographic Technology • Shield • Synthetic • Synthetic Pet •
Communications // Surveillance // Security
Medical // Science
• Actuator • Cerebellux procedure • Chemulon-6 ChemPrinter • Facial Replication Technology • Meal Supplement Dispenser • Memory Recollection machine • Memory Scrub machine • Programmable DNA • Synthetic limb • Chrome • Cloning •
Drugs // Substances