A:AnswerHi there, this Sony XBR-65X900C supports passive 3D and compatible with 3D glasses model: TDG-500P. To know more about the product specification, kindly visit this link: https://docs.sony.com/release/specs/XBR65X900C_mksp.pdf - Jerome
A:AnswerHello, thank you for your message. 3D passive is the technology used. The 3D model number is TDG-500P. For more information, check the link below: https://docs.sony.com/release//specs/XBR55X900C_mksp.pdf. -Oscar.