We have been working inside the company is really free, but we never punch, but now more and more people inside the company, but the system is more and more difficult, so we headed to our company to install some time attendance security door, I think, inside the company to install some time attendance security door is really useful, but if there is such a time attendance security door, the company will look formal, so I think the leadership to install the time attendance security door we are really good, and now we are working on the clock, it can avoid a lot of problems so, I think the time attendance security door is really good.