1. Sleep monitoring time: 8 hours
2. Display Direction: OLED blue and yellow color display, 6 kinds of display modes, 4 kinds of display direction
3. Blood oxygen range accuracy: 70% ~ 100% ± 2%
4. Pulse range accuracy: 25 ~ 250BMP ± 1bmp
5. perfusion index: ≥ 0.2%, ± 0.1%
6. Power Requirements: 2 AAA batteries
7. Working current: ≤ 30MA