This Healthsmart Talking bilingual wrist worn blood pressure meter has clinical accuracy and can speak results in either English or Spanish. It has memory settings for 2 different users, with 120 result total capacity. It features irregular heartbeat detection of the last 3 readings, and heart spot technology to indicated the optimum position of the user's arm to ensure an accurate reading. Cuff size from 5.3" - 8.5". Uses 2 AAA batteries (included).