Parameters? Three parameters?NIBP, SPO2, Pulse Rate. Waveforms: No waveform. Features? 1.Compact, light, easy for carrying and handling. 2.Large bright LED display of measurement, easy to read. 3.Unique character and icon display of information, easy for setting and watching. 4.Storage and review of NIBP and SpO2 data up to 800 groups. 5.Build–in rechargeable LI-battery for 10 working hours. 6.Low battery power indicator. 7.Automatic power-off. 8.Audio and visual alarm. 9. External printer available.