MultiPhase sound

MultiPhase sound was a standard feature installed in Industrial Automaton's R2-series astromech droid. A trademarked system, MultiPhase sound was advertised in the marketing materials for the R2-series at no extra cost.
==Sources==
*Star Wars: The Roleplaying Game
*Star Wars: The Roleplaying Game, Second Edition, Revised and Expanded
==Notes and references==
Category:Droid parts
Category:Sonic technology