CERTIFIED MEDICAL DEVICEThe wrist blood pressure monitor has passed CE certificate, with advanced technology by doctor recommended for home use. High Accuracy Measuring: 3mmHg/0.4kPa(blood pressure); 5%(pulse rate) LARGE CAPACITYThe digital blood pressure monitor wrist accommodates two individual users saving their individual readings on the same tensiometro (up to 99 readings per person), which helps you track your health, blood pressure, pulse rate, date and time of measurement. Furthermore, the wrist blood pressure cuff comes with Intelligent Voice Function PORTABLE AND RECHARGEABLE The Portable wrist cuff blood pressure monitor included a complimentary durable carrying case and USB charging cord to make sure you can easily carry your BP Cuff anywhere you go and recharge it anytime, and be able to record your heartbeat when doing various activities or traveling. Please recharge it full first before using WIDE RANGE COMFORT CUFF Wrist blood pressure monitor, All-in-one dual-sized comfort cuff to accommodate both medium and large arm circumferences ranging, the wrist circumference 5.3 - 7.7 inch PACKAGE INCLUDES 1 x Blood Pressure Wrist Monitor, 1 x USB Charging Cord, 1 x Portable Storage Box, 1 x Manual