Features 1、[SPO2 And Pulse Detection] Accurately determine your SPO2 (blood oxygen saturation level), pulse rate (heart rate), LED display shows the measured value, very convenient. 2、[Keep Healthy] Regular monitoring of blood oxygen saturation and pulse is essential to stay healthy, whether it is due to heart problems, lung disease or asthma, or just during strenuous exercise. 3、[Easy To Use] Just clip this oximeter on your index finger, you can read your vital signs in a few seconds, whether you are at home or out, you can easily monitor it anytime, anywhere. 4、[Multi Functional] The large display has four graphic display formats, easy to read, adjustable brightness and direction, with automatic shutdown and low battery indicator functions. 5、[Small And Portable] With a lanyard, easy to carry, small and light blood oxygen saturation sensor, no matter where you go, you can keep track of blood oxygen level at any time. Specification Item Type: Fingertip Pulse Oximeter Material: ABS Power Supply: Lithium Battery 200mAh (Delivered with Built in Battery) Package List 1 x Fingertip Pulse Oximeter 1 x Manual 1 x Charging Cable 1 x Lanyard