The sunglasses appear to be built well but I have read other reviews where people have had problems with dropping them and breaking the arm. They fit very well on my face / head so I did not experience an issue with them falling off of my face. I would suggest those wearing them while biking, boating or amusement rides to wear a strap so that the glasses will not fall off of your face and get damaged.
My package included sunglasses, carrying case, built-in lithium battery, charger, USB cable, tinted polarized lenses, transparent lenses, Image Editing software, with a 1 year warranty.
In my opinion the video quality is excellent. I have tested it a few times and downloaded a video review on YouTube so that you can judge the quality for yourself before purchasing a pair.
Check out the video right here: