Wireless technology, effective transmission to PC ( PDA and Smartphone software is not available at this momnet )
Large true color OLED display of SpO2, PR Pulse Bar, & Plethysmogram.
Innovative auto sensing 4 direction display
automatic power on when finger inserted into clip
visual and audio alarm when spo2 and heart rate out of limit .
Alarm limit changeable
2AAA alkaline batteries with low power consumption
Low battery voltage indication.
What included :
2) two aaa akline battery
3) software cd for PC
4) carrying pouch
5) instruction manual
Items are sold as-is with no returns or refunds available unless explicitly stated.