They are a Chinese product and from what I’ve read they have been making a lot of parts that are used by other thermal scopes.
I purchased a TR650 and so far it seems very well made and easy to use thermal. Kansas thermal season runs Jan-March so I haven’t shot it much but it has some nice features. I zeroed it with thre shots. I especially like that almost everything is controlled by one push/turn button. 640 resolution clarity is as good as scopes priced at twice as much. So far the only complaint I have is the eye cup, I can’t get a view of the full screen very easily, and the cup is not removable.