Application: Finger
Material:ABS
Display: OLED Display/LED Display/ TFT Display

Power: 2*AAA 1.5V battery (NOT included) 
Color: Black/Blue

ACCURATE AND RELIABLE--Accurately determine your SpO2,pulse rate and pulse strength
n 5 seconds and display it conveniently on a large digital OLED display
SPORT/HEALTH--For sports enthusiasts like mountain climbers, skiers, bikers or anyone
nterested in measuring their SpO2 and pulse rate. SpO2 and Pulse Rate now faces instead
of away from the user for easy read