• Real-time monitoring: With the free app for Android and iOS, you can view the SpO2 waveform, heart rate, and perfusion index in real-time, as well as record historical data. • Ideal for home use: Perfect for athletes, pregnant women, the elderly, and anyone concerned about their health. • Easy to use: Simply insert the batteries, place your finger on the device, and in seconds you'll see the reading on the LED screen. • Portable and lightweight: Weighing only 70g, it's easy to carry with you. Includes a detachable strap for added convenience. • Fast and accurate: Quickly obtain your oxygen saturation and pulse, especially useful during cold and flu season. • Package contents: 1 professional finger oximeter, 2 AAA batteries, an optional strap, all in a compact box for storage.