0.96" dual-color OLED display ( blue and yellow) 
 Display of SpO2 , PR, bar graph and pulse waveform. 
 Four directions and six display modes 
 Adjustable brightness. 
 Low battery indication. 
 Automatic power off when the finger leaves the device for 5s.
 Display mode can be saved after power aft
 Optional enclosure color
 Power Supply two “AAA” battery 
 Continuous working time: 20 h