High brightness LED screen displays SpO2，PR and Pulse bar

Simple operation for immediate，real-time spot checks

Automatic power-off function.Battery-low indicator Lightweight and portable for travel，durable quality suits for gifts

Intended for sports and/or aviation use only;Can be used by a variety of sports enthusiasts，including mountain climbers，high-altitude activities，hikers，skiers，bikers，running and others interested in measuring oxygen saturation and pulse rate

Package includes:pulse oximeter unit，carrying pouch，lanyard，2 AAA alkaline batteries，users manual