Or their friends said this NVR, I’m sure I don’t know, but I think, this NVR is very good, I should learn more from them, I pay attention to other things is usually not how, I think that life is not for me what makes friends, but that when it comes to NVR, I think the NVR knowledge is very useful, so I think is to learn, because I think, this NVR and I work there may be some relationship, so I want to learn, but for now me, no matter what kind of knowledge or learn some of their own good.