Haven’t work when I don’t know what clock is used, completely don’t understand, until himself work after punching is a means of record attendance, salary is also very useful in this way, the small company is a punch machine to record attendance, and big company attendance a lot is time attendance security door, feel really have time attendance security feel really convenient, company staff is more, a month down record attendance if artificial statistics really very troublesome, in view of this situation, so now is the time attendance security this feel, can be very simple attendance, also can ensure the safety of all employees, is really very convenient.