These camera glasses are easy to use and deliver a fairly good image in good lighting, or outdoors, and can deliver a usable image in subdued lighting. The control switch is easy to use, and with a little practice can be done without drawing attention. The front lens opening is fairly small and won't cause attention when you are several feet away. Up close, it's more noticeable, and whether or not it gets noticed depends on who is looking at it. Some will see it right away and get suspicious, while others will never apparently see it.One thing to note is that your brain does a very good job of preventing you from seeing motion blur, and the rapid motion when you move your head to look around. The camera will see that movement and record it, however. My first test of the camera was to put the glasses on and go through the house and then go outside and walk around. Watching the video almost made me seasick. So be aware of this, and try to move you head slowly and smoothly. You can always edit out parts where you have to move, but if you are constantly looking around it will make for an unwatchable video.