GNC Digital Talking Wrist Blood Pressure Monitor. Large LCD screen. Speaks blood pressure results. Memory with time and date stamp (2 users 90 Memory per user). Body Movement Indicator. Average calculating for the last 3 measurements. Irregular heart beat detection function. Blood pressure classification indicator. Automatic inflate and deflate. New measure while inflating technology. Powered by 2 AA size Alkaline batteries. Automatic power-off function. Measuring range: Pressure - 299mmHg; Pulse - 40-180 times/min. Measuring accuracy: +/-3mmHG; Pulse: +/-5% of reading. Dimensions 5 x8 x3.25