Black Gem Oximeter (LED Screen) Color: Black 1. High-precision detection: The fingertip oximeter can accurately measure your blood oxygen saturation and help you understand your health status in real time. 2. Portable and convenient: The compact and lightweight design is easy to carry and monitor blood oxygen content anytime and anywhere. 3. Easy to operate: Simple fingertip insertion design, one-click measurement, easy and fast operation. 4. Multi-function: Not only can it detect blood oxygen saturation, but also heart rate, to meet your various health monitoring needs. 5. High cost performance: Affordable price, reliable quality, it is a health instrument you deserve. Note: You need to buy 2 No. 7 batteries yourself Package includes: 1* Fingertip oximeter