I have been using this device for a few months so now I have some certain impression about its performance. When the night time conditions were not extreme, i.e. stars but no moon I could detect a human sized objects from 120 yards. I am not completely satisfied with these results, so I want to buy a 5x or maybe 8x lens for my Nyx-7. This is another good feature of the product you can have a wide range of accessories for your personal needs. There were two tiny black spots on the screen but I was told that this is acceptable due to production process. They are almost invisible so I can not say it annoys me.
This review was written in the old system and had content requirements that are different than reviews written today.