Features 1.Large digital LCD screen, easy to operate, just press the open key to test, simple and convenient for home use. 2.Talking function to instruct the right test gestures, announce the testing result for accurate and fast measuring. 3.Clinical measurement blood pressure monitor, suitable for home or outdoor use, easy to take accurate readings. 4.Pressure measuring range of 0280mmHg (OKPA37.3kPa) and pulse measuring range of 40199 beats /min. 5.Powered by 2pcs AAA battery (not included), high sensitivity and quick response for high efficiency measuring. Battery: 2pcs AAA batteries (Not included) Display Mode: LCD digital display Measuring Range: Pressure: 0-280mmHg (OKPA-37.3kPa) Pulse: 40-199 beats /min Usage: 1. Wrap the tester around the inner side of the left wrist and stick the wrist band from bottom totop 2. Paste the extra parts to the wristband from bottom totop 3. Place the wristband at a distance of 10 ~ 15mm / 0.4 ~ 0.6in from the palm to the wrist (about one finger width) 4. When measuring your blood pressure, be sure to keep it at the same height as your heart