First of all: I use the glasses for cycling and find it handy at your fingertips capture a small scenic impression. That works quite perfect. The one-button operation is simple (even if there is something in the instructions otherwise): Short Knpfdruck on the silver button on the right side then it takes a few seconds (4-5) and the recording starts. Off by a slightly longer pressure (about 1 sec). So far so good. The videos are OK - even the change from light to dark parried the camera very quickly. What a self amazed how restless you hold the head while cycling (but this can not the camera). The microphone recording is good - but cycling has been with Tempo 12 wind noise very loud, so that one very loud contrast to need comment, if you want to understand their own words afterwards. That is really the missing star. The camera is on the right temple during operation noticeably warm - not unpleasant, but noticeable. You could take a helpful indication that the camera is rolling. The blue light on the right inner side near the temple, that is during the recording of, I have not seen without discontinuation of glasses. And when I look at the one star was still not quite sure. At the latest when evaluating the videos, I was sure. The camera is aimed too high by at least 5 °. In the car I see up to 50% the car roof and the windshield and only the top half. So you have to always lower his head a little and slightly upward look (Anhalt has the upper margin of the spectacle - when the flush with the car roof you get the entire view from the windshield). Battery life: When you start the camera loaded fresh and lets you go through, then it switches off after about 80 minutes. But can be started again after a short time. But 2 hours, is certainly can not record. Ladzeit about 2-3 times as long. After 3 1/2 hours the charge lamp went green. Alternating between clear glass and solar glass is okay - at something like brute force as well as what break - some caution is needed
In summary: + Service is good + Looks okay + Videos are useful - Annoying wind noise from about 12 km / h - Point of view is getting used to