?What's in the Box?The pulse oximeter *1, AAA Battery*2,Long lanyard(Neck/Wrist Cord)*1,User manual*1. If you have any issue please contact us Via . ?Wide Crowd?The fingertip oximeter is made of silicone material, which is softer, warmer and more comfortable. It is ergonomically designed and can be widely used by children, teenagers, adults, the elderly, pregnant women, athletes and anyone who is interested. . You can easily measure your pulse level after flying, skydiving, running, swimming, mountain climbing, skiing, eating, waking up and other activities. ?Smart & Long Battery Life?The oxygen meter's fingertip clip use silica gel mairal, is soft and easy for a wide range of finger sizes. smart alerts 5 seconds auto shut-off, 20-30 hours battery life, automatic power off after 5 seconds. ?Easy To Use?This oxygen level monitor is easy to operate by simply sticking your finger in it to take a measurement and monitor your blood oxygen anytime, anywhere. portable spo2 pulse oximeter is mini, lightweight and easy to carry. It can be put in your pocket for easy carrying. ?Digital Technology Low Energy Consumption Clear reading?This blood oxygen monitor finger has a digital data display function, the readings are very clear and intuitive like real-time waveforms, digital display clear high-precision oximeter. ?Accurate & Fast?Oxygen monitor finger adults Measures accurately and quickly spo2(blood oxygen saturation of arterial hemoglobin levels), one-touch measurement pulse rate, bar graph and pulse strength results,display it conveniently on digital LED display.