... 1.ecg LCD display: 2.4" TFT. 2.portable, convenient to use. 3.continuous running time:7 hours. hot sale patient monitor system holder ... 10440 lithium battery, 3.7V, can charge circularly, also can change.A USB data line, can connect with PC.An oximeter probe ... (optional, BF applied part )ecg cablesA CD(PC software), can analyse and install softwareAn User ManualAn earphone, it is stethoscope ...