Designed by Prestige Medical, this WristMate Digital Blood Pressure Monitor is an automatic monitor that measures from the wrist. One-touch operation and clinically tested for accuracy. Recalls up to 40 prior readings for up to three users. Includes World Health Organization (WHO) indicator for blood pressure classification. This monitor includes two AAA batteries and plastic storage case. Cuff Range 5.3"–7.5". A Two Year Warranty is provided directly from the manufacturer.