one of the best spectacles!

Both the first Acer 3D glasses with the rigid brackets which Vidimensio and the Optoma ZD201.

The first Acer glasses with rigid brackets had a very good picture. Unfortunately, this hard (I felt it on the bracket over the ears hurt, my wife pressed after an hour on the nose) and the bracket could break one.

The Vidimensio glasses had strong ghosting in the edges of the glasses and a different color representation due to colored glasses (colored yellow). In addition, the image flickered subjectively stronger than the other.

The Optoma ZD201 is the best so far glasses.
Light, only a button cell, foldable handle, clear glasses, but unfortunately hardly available.

This new Acer glasses here is 100% identical with the Optoma ZD201, plus cheaper and more available.
I can absolutely recommend this therefore currently.