Silence Master (Su)

A 6th-level Pathfinder savant can to activate spell-trigger, spell-completion, and command-word items silently, substituting a magical gesture for the necessary words. He cannot use this ability in circumstances where he could not cast a spell with somatic components. He must know how to activate the item normally for this ability to work. Three times per day, he can cast a spell of 6th level or lower as if he were using a silent metamagic rod.