This Blood Pressure Monitor with voice features connectivity. It synchronizes measurement data through Bluetooth on your smartphone, (Android/IOS) compatible. It can simultaneously measure systolic /diastolic blood pressure, irregular heartbeat & pulse rate. This Blood pressure monitor with an Intelligent micro air pump has automatic pressure & decompression function. Store 2 users’ data simultaneously. It stores 199 sets of most recent blood pressure readings data for each user for later viewing. It also supports the average reading of the last 3 measurements for data comparisons. Store Data for 2 Users at the same time !! !! This Blood Pressure Monitor comes with a Full Year !! Features: Backlit Curved LED Display Built-in Speaker Support Voice Broadcast Stores data for 2 Users simultaneously Stores 199 sets of data for each user Bluetooth-synced data on your smartphone Irregular Heartbeat Indicator Average reading Auto-shutdown function Intelligent micro air pump Dual Power source Show BP with a respective Colour indication Show Kpa & mmHg two display unit conversion (default unit is mmHg) Comes with a carrying bag Specification: Product: Arm Blood Pressure Monitor Built-In Speaker: Yes Display: Curved LED Display Measurement method: Oscillometric Arm Circumference: 22-42 cm BP Measuring Range: 0-299 mmHg with ± 3 mm/Hg accuracy Pulse Rate Measurement Range: 40-199 bpm/Minute with accuracy ±5% Memory Function: 2 × 199 Sets: 398 Total Power mode: Dual: USB Type-C or DC6V 4 × (1.5V x AA) Batteries Size: 138 × 100 × 62mm Bluetooth: Yes Weight: 600g Package Includes: 1 x Arm Blood Pressure Monitor 1 x BP Cuff 1 x USB Typ-C Cable 4 × 1.4V AA Batteries 1 x Carrying Bag 1 x User Manual