Simultaneous 12 leads ECG data acquisition and display Simultaneous 12 leads ECG printing with 216mm/210mm thermal paper (Roll or Z-fold) 10 inch 800 x 480 TFT color LCD Alpha-numeric keyboard Built-in rechargeable lithium battery (print up to 360 ECG reports) Built-in 4G SD card, save up to 10,000 ECG reports in XML format Pacemaker detection Precise ECG auto-interpretation program USB slave port can be connected to PC-ECG software USB master port can be connected to an external USB printer supporting PCL6 language Network transmission Software upgrade automatically via SD card. Machine Size: 435mm*335mm*98mm Machine Weight: 4kg.