Of course you should by a 20-Euro-products not expect too much but should know the following applicants: 1) The original card-board glasses Google uses a magnet as a switch. This does not exist in the Pearl glasses, why not let some apps use 2.) is so tightly sealed that a mobile phone is very hot. VR apps are quite computationally intensive, which can be critical in the absence of cooling 3.) The quality of plastic lenses is very moderate 4) camera holes are missing, so AR apps can not be used (ok. Nothing was promised but had a few holes targeted certainly nothing tasted)
