【Accurate & Easy to use】: One button operation, built-in infrared sensor will instantly start detection and then the measured SpO2(blood oxygen saturation) and PR(pulse rate) will be displayed on the colorful LCD screen within 10 seconds, measurement results within ± 1% precision. Auto power-off after 7 Seconds.

【Warnings for Abnormal Readings-Auto Alarm】: The value on screen will flash and give auditory alarm when abnormal SpO2 or pulse rate is detected, the oximeter will gives the above alarm to remind you.

【Powered by Rechargeable Lithium Battery】：Rechargeable lithium battery avoid the trouble of frequent battery replacement. Low-power consumption, charged 2 hours one time can be continuously used for 18-20 hours, true environmental friendly

【Lightweight and Portable】: Fingertip pulse-oximeter very light and easy to carry, this oxygen finger monitor is attached with detachable lanyard

【User Friendly Design with Drop-resistant Design】:Upgraded structural design at the joint parts with wide range of finger size，inside soft silicone finger holder and drop-resistant design makes sure a longer usage life and more comfortable experience.

【Data Storage Function With Free APP iOS & Android】: Download our specialized App and connect it to your phone via Bluetooth, all history measuring data(PR, PI and SpO2） will be stored in the App permanently for convenience of the general understanding of your sports data.