... keyboard backlighting), Chinese, English, digital inputAccess functions50 time zone, 5 groups, 10 kinds of combination and open ... independent of external doorbell, Support 10 clock time.Usb functionSupport usb upload or download data, ... /download functionYESSelf-checking functionYESAttendance records inquiresYESDaylight saving time settingYESAlarm functionYESWeb serverEmbedded WEB server, users can ...