Average Mode: With the touch of a single button, takes 3 measurements then automatically averages the results. Features: simple, 1 button operation; automatically stores 30 readings for 2 users (total 60 readings); comfortable; fully automatic inflation and deflation; includes 2 AAA batteries; 3 measurements for superior accuracy. Also features: battery cover, print button (printer sold separately), wrist cuff, time/date button, memory button, on/off button. Additional Benefits: Works with Microlife printer. Prints 2x blood pressure measurements to take to the Doctor and for your records. Stores 30 separate readings for two users, Comfortable, Single or Average Mode feature, Fully automatic inflation and deflation, Includes 2 AAA batteries, Simple one button operation