mibest oled finger pulse oximeter, o2 meter, dual color white/black mibest the fingertip pulse oximeter designed to provide an easy and accurate way for spot-checking your blood oxygen saturation levels and pulse rate. whether you're a pilot, an athlete and want frequent oxygen saturation monitoring, this oximeter is the perfect choice for on-the-go readings that fit with your lifestyle, with simple operation that allows it to turn on with the touch of a button, and a small size coupled with a soft carrying case makes it a great travel companion that can be taken anywhere. this oximeter is designed for sports and aviation use, and is not intended to diagnose any medical condition or to be used in medical applications.