Me and my son had a great time with these, they were easy to use and the instructions simple to understand. I only had one issue, when I went to put in the batteries i noticed one of the screws was a bit on the stripped side but after careful maneuvering i was able to get the screw out enough to take the battery cover off. Once that was done and the cover back on the screw went into place correctly. The lights popped out the sidessides like shown in the box. My son enjoyed them for hours and hours. Personally they hurt my ears but these are for kids so they fit a kid. I did wear them long enough to see that I could actually see pretty well in the dark.