The Control D Bluetooth Digital Pulse Oximeter is a highly accurate device for measuring pulse and blood oxygen saturation (SpO2) levels, suitable for both home and professional use. It features Bluetooth connectivity for real-time data syncing with a mobile app and is ideal for athletes monitoring their health. The device offers user-friendly functions, quick readings, and a range for pulse rates from 25 to 250 bpm and SpO2 from 35% to 100%.