Works with Google Cardboard. Scan the QR code to calibrate your mobile device and ensure pefect 3D immersive viewing performance in all your VR apps. Secure – Nano technology grip strip and rubber banding provide more secure grip on your device. Capacitive button – Interact with virtual worlds by looking at objects and scenes and pressing the button. Trulens – Precision jig assembled ensures perfect lens alignment in every viewer. Hook and loop fastening for fast and secure setup. Light yet hard-wearing construction card body. Endorsed by the Science Museum.