Dots Video Intercom With nice appearance and good price OEM High quality and well service Dimensions: 255 *188 *40 Dots Video Intercom,intercom system, video intercomFEATURES: Network by bus mastering, digital communicationAdopt computer chip, with all inner decodeMore types mixed to Install, Embedded and wall-mountedMore functions: intercom, video, unlock, surveillance, alarm and so on.Able to ...