Review Content Great Gadget I was a little intimidated by these before setting them up but could not believe how easy this was. The playback was easy and details were crystal clear. Loved using them and are great for any outdoor activity. Video Sunglasses To film driving on winding roads To film while "chasing" somebody in fun I would buy it again Good for biking hiking spying Great invention! My boyfriend loves these glasses! He wears them when he goes mountain biking and enjoys sharing his adventures Great Product I love the quality of the glasses. When I first bought them to test them out I had a 2gb sd card inserted when I recorded I thought it was defective because it seemed like it was streaming, however I bought a 32g high performance and it worked out well, the quality is amazing! Outstanding I had no problems learning the controls. I still need to learn to keep my head still and turn slowly. The level of video was better then expected. Had expected a bit more I bought these sunglasses because I am an active member of an Ultimate Frisbee group and wanted to create a few promotional POV videos. GoPros and body cameras are a bit too bulky to use for a fast moving sport (with some contact with the ground and with people), so these sunglasses seemed the alternate way to go. The glasses themselves are fairly comfortable, though they were a bit tight back by the ears. The replaceable lenses are a nice feature, but be careful, they scratch and scuff easily. It takes a while to get the hang of starting the recording vs. turning it off vs. taking a still shot. At first, I was just turning it off and on again, but eventually I got it. Future designs may want to include more than one button for all tasks. The video playback is good quality, although the field does appear to be twice as long as it is (wide-angle lens), so capturing action on the other side of the field is tricky. The sound quality is pretty good. You can hear me very well, and you can hear nearby pla So far, happy with product. I like to use this product while snow skiing. The clarity is fantastic and the sound is wonderful as well. Im still unable to change date and time. Ive followed the instructions to the tee and its not performing as per the steps. A work in progress!!! Light as a feather... I use my video glasses to capture my dog playing and having a good time....hes camera shy, but now I have video and photos of him to share with family and friends....we get a good laugh!