Size: 12,1 Inch Medical grade HD LED Display with standard configuration of : Main unit with two probes Laptop thin and light design, all digital color Doppler ultrasound host; TWO active probe connectors Frequency conversion: 2MHz-12MHz (Depending on the probe) Standard keyboard and backlight key; Ultrasonic host operating system: Windows 7 operating system; 3200mAh rechargeable lithium battery; Measurement & calculation software packages RICE: Additional probe USD $ 1,100