Limited stock remaining. Discounts available when you purchase multiple items. ※ New, unused, and unopened. For daily health management and exercise monitoring purposes. Protect yourself with daily health management. Reliable Japanese manufacturer, guaranteed quality. Kobayashi Yakuhin RABLISS for daily health management. For daily health management! RABLISS is a wellness device that can also monitor blood oxygen saturation levels for health management purposes. In addition to blood oxygen saturation, it has 4 useful functions for outdoor activities: ■ Pulse rate function ■ PI value (Perfusion Index) function ■ Counter function ■ Stopwatch function ＜What is blood oxygen saturation?＞ Blood oxygen saturation refers to the amount of oxygen in the blood, also known as SpO2. The value is expressed as a percentage, with 100% indicating the blood is fully saturated with oxygen, and the standard value is said to be 99-96%. ＜What is the standard※?＞ (※ Generally accepted standards) Blood oxygen saturation: The standard value is said to be 96-99% ※ According to the Japanese Respiratory Society HP Pulse rate: Generally 60-100 for adults (at rest) ※ According to the Chiba Medical Association publication ※ This is not a medical device.