1. Face capacity: 1000 sheets 2. Record capacity: 150,000 3. Working method: networking 4. Attendance method: face, WIFI, GPS 5. Screen size: 4.0 inches TFT color screen 6. Size: 11.5x2.4x11.5cm 7. Weight: 500g 8. Recognition is more efficient, five people can be recognized at the same time within 1.5 meters 9. It can be placed upright or hung on the wall 10. Non-contact attendance, even when wearing a mask 11. Due to the algorithm structure problem, the recognition speed of wearing a mask is slightly slower than without a mask, subject to actual conditions