At first glance super eyeglasses which unfortunately happen very quickly broken or defective immediately.

I bought three glasses.
When they arrived at me, I did it only once as described fully charged. This lasted 2-3 hours and worked thanks to the supplied charger (which looks exactly like a battery charger from Apple for the iPhone 5) and the associated Kadekapels. Since I have ordered only a charger, I compared the output values ​​of the charger with the Apple chargers and lo and behold, they are identical. So all three glasses loaded.

The glasses make a quality impression and look good. Included are still moist cleaning cloths, a microfiber cloth and a microfibre cloth bag. It's also great that the glasses have bright and large glasses. So first impression super.

Now the negative and the reason for the return.

I have a BenQ TH 681. The glasses work with the projector very well. ie they worked immediately.

However, one of the three glasses was immediately broken. They flickered on the left lens, and worked not left.

The other two were working on the first two days actually perfect. Four films were watched.

On the third day, however, had another spectacle dysfunction. The right glass was much brighter and showed the colors very contrast-arm. I also got eye pain and headache.
I'll send the glasses back, I'm not satisfied with the quality offered.
So the 3D display and color brilliance was great when you were working. Also the wearing comfort and the big glasses are top. However, the joy is short-lived because the quality and the technology of the glasses is not apparently mature. Too bad.