?Rechargeable and Portable?- one full charge for 3 months. you can use it at home, traveling or working. ?Easy to Use and Automatic blood-pressure cuff?- One-Button operation and check your data in 30 seconds, wide-range automatic cuff fits standard to large adult (22-42cm). ?Sharing Data?- The historical data of different users can be reviewed and shared with family or friends on the APP. ?Bluetooth function ?- Real-time data will be synchronized to the APP to be saved and viewed. ?Medically Accurate?- BP monitor cleared by FDA measures systolic, diastolic and heart rate.