Features: 1. Fast readings: consistent results that have been tested and proven. The large digital OLED display can quickly receive blood SpO2, pulse rate and pulse intensity results. 2. SpO2, pulse rate and pulse bar graph reading: simple bar graph that shows your SpO2, pulse rate and pulse intensity results. 3. Portable and easy to use: light weight, compact structure, easy to carry and carry, can be used at home or outdoors. Description: This oximeter is very suitable for testing SpO2 and pulse rate in sports activities, such as climbing, running, cycling, etc. Specifications: Color: black , dark blue, Sky blue black (optional) Material: plastic Working voltage: 2.6 - 3.6V Power consumption: not more than 25maA SpO2 measurement range: 0 -100% Pulse rate measurement range: 30 - 250BPM (resolution is 1BPM) Size: 51*31*31mm Package Included: 1 set * Finger Pulse Oximeter Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.