... Product brief introduction Options:GPRS,TCP/IP,EM CARD,USB,BACKUP BATTERY .Identification speed obviously improved, process 3, ... 0. 7 secondAlarm clockEmbedded alarm clockUSB powerSupport power by USB line from notebookCommunicationsTCP/IP, USB and Weigand outputShowTime, ID number, NameLanguageEnglish, ... Time Clock1 Software CD with digital instruction manuals1 Power Adatptor1 USB CableFixing Screw