Non-invasive Oximeter: This sports-grade, non-invasive oximeter is equipped with a high-performance accelerometer that senses body motion, ensuring highly accurate and reliable data. Quick and Easy Testing: Simply insert your finger into the sensor, and results be displayed on the OLED screen in seconds. Its user-friendly design makes it ideal for monitoring anytime, anywhere. Adapts to Various Finger Sizes: Designed with a system, it adapts to different finger sizes for users aged 12 and up. Portable Design with Long Battery Life: The device features low power consumption and an automatic power-off function. Compact and , it comes with a detachable lanyard, making it ideal for outdoor enthusiasts and daily health monitoring. No-Prick Blood Oxygen Monitor: The LED display provides clear, easy-to-read results. It's ideal for athletes who need real-time blood oxygen and pulse monitoring, such as climbers, skiers, and cyclists. Color: Black Material: ABS Package Contents: 10 * blood oximeters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.