Features: IHB arrhythmia detection. LCD digital display,easy to read. “WHO” blood pressure classification. Two measuring method,pulse scanning and oscillometry. 2×99 memory data for easy monitoring of blood pressure fluctuations. Specifications: Voltage: 5V Pressure: ±3mmHg Display: LCD digital display Pulse Accuracy: ±3% reading Pulse Rate: 40-200 times/min Package Weight: 300g/10.6oz Package Size: 181212cm/7.14.74.7in Measurement Range: 20mmhg~280mmhg Measurement Method: Pulse scanning/oscillometry Power Supply: 4AAA alkaline battery/USB Charging Cable for Android (not included) Package List: 1 Manual 1* Bandage 1* Blood Pressure Monitor