The Beurer BM 81 Premium Blood Pressure Monitor is an advanced digital device featuring Bluetooth connectivity and an innovative easyLock cuff system. It offers precise upper arm blood pressure and pulse measurements with a large illuminated display for easy reading. Key features: • Bluetooth connectivity for data transfer • Innovative easyLock cuff system • Large illuminated digital display • Risk indicator with LED display • Memory function for multiple users • Arrhythmia detection • Compatible with Beurer HealthManager Pro app The device includes a cuff suitable for arm circumferences from 24-40 cm and features automatic pressure pre-selection and deflation for comfortable measurements. It can store up to 120 readings per user and calculates average values for morning and evening blood pressure over 7 days. The monitor is powered by AAA batteries and includes cuff position checking to ensure accurate readings.