We've had virtual reality headsets in the form of Oculus Rift before, now how about a phone you can wear?
Samsung's new Gear VR is a headset that uses your smartphone as the screen. Slot the newly unveiled Samsung Galaxy Note 4 into the front, and you can walk around with your phone right in front of your face, no hands required.
The Note 4 has a 5.7-inch screen, and its resolution is 4K, so it should look pretty spectacular close up.
Unlike the Oculus Rift, there's no virtual reality gubbins inside the headset. All the processing is done by the Galaxy Note 4. In that respect, it's just like Google Cardboard.
It should make watching TV on your mobile a lot more immersive.
If you want to pause or rewind while watching, use the small, square touchpad on the side of the headset. It also has its own back button and volume controls.
It even adjusts for near- and far-sighted wearers.
Samsung has announced it is working with DreamWorks on early content partnerships. It has yet to set a price or release date, but look out for it before Christmas.