... 3.External dimension:316*130 locklocks-ZC9 video door phone CCD is calling management center and talk, remotely unlock by management ... ), video door phone (outdoor unit), (video door phone, color outdoor camera), (color door phone, outdoor phone), color outdoor phone with LED ... .Convenient night use with keyboard lamp.5.Video outdoor phone CCD, with automatic IR for night view.6.Unlocking with password ...