Specifications: Voltage: 3V Color: White Display: LCD Pressure: ±3mm Hg Package Weight: 148g/5.2oz Pulse Rate: 40-165 times/min Pulse Accuracy: ±5% Reading Package Size: 97.57.5cm/3.533in Item Type: Wrist sphygmomanometer Measurement Range: 20mmHg ~280mmHg Power Supply: 2AAA alkaline battery (not included) Package List: 1 Manual 1* Blood Pressure Monitor