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Color Classification：Gold One to One【One Button+A Host】 Golden One for Two【One Button+Two Hosts】 Golden One for Three【One Button+Three Host】 Golden Two Slippers One【Two-Button+A Host】 Golden er tuo er【Two-Button+Two Hosts】 Golden Two Slippers Three【Two-Button+Three Host】 Gold Three One【Three Buttons+A Host】 Golden Three Slippers Two【Three Buttons+Two Hosts】 White One to One【One Button+A Host】 White One Drag Two【One Button+Two Hosts】 White One Drag Three【One Button+Three Host】 White Two Slippers One【Two-Button+A Host】 White Two Drag Two【Two-Button+Two Hosts】 White Two Slippers【Two-Button+Three Host】 White Three and One【Three Buttons+A Host】 White Three Slippers Two【Three Buttons+Two Hosts】 Black One to One【One Button+A Host】 Black One Drag Two【One Button+Two Hosts】 AWhite:1Host+1The Call Button+1Near the Button BWhite:2Host+1The Call Button+1Near the Button CGold:1Host+1The Call Button+1Near the Button DGold:2Host+1The Call Button+1Near the Button 【New】Gold One to One 【New】White One to One Type of Intercom：Other/other Type of Intelligence：Other