Features:-Easy to use, you only need to insert your finger for 3-5 seconds to get a reading, when you remove your finger, the device will automatically shut off, saving energy and being environmentally friendly.-Equipped with a high-brightness backlight LED display, it helps to clearly read parameters such as SpO2, pulse and bar graph.-Lightweight and small, you can put it in your pocket comfortably and use it anywhere and at any time.-It is clinically validated to provide accurate and reliable results, making it an ideal tool for monitoring the health of the whole family.-It works with a rechargeable battery using a Type-C charging port and has an extra-long standby time.Specification:Color: light blueDisplay mode: monochrome LEDBlood oxygen saturation: mea.