1.Multilanguage:Chinese,English,Russian,Italian,Portuguese,Spanish,German,French 2.Live view Zoom Support 3.ADPCM audio FeaturesH.264 ... RS-485 portSelectable packing time for recording filesMultilanguage option Chinese, English, Russian, Italian, Portuguese, Spanish, German, FrenchSpecificationsModel NameCS-B401HOPERATION SYSTEMLINUXVIDEOVIDEO SYSYEMNTSC ...