Product Features1.Perfect designed intelligent circuit 2.Printing position adjustable automatic 3.Pull and stop automatic 4.Red/black printing for your select 5.Back-up battery for your select Functions:1. Two-color printing 2. Musical alarm 3. Auto column setting 4. 36 groups available 5. Internal music External bell socket*optional 6. 9 Dot-matrix printing technology 7. Auto detection of correct time card side/Positive and negative identification. 8. 6 Columns IN/OUT print available 9. Six recorders per day 10. Setting day line change time 11. Setting day light saving time 12. Built-in perpetual calendar 13. Built-in backup battery in case of power failure 14. Black/ red printing 15. Automatic shift 16. Print auto-turning 17. Touch keys 18. Multi-function for different working hours of attendance records . 19. Anti-thunder functional design. 20. Support Monthly Weekly Bi-weekly cards