Notebookcheck had the privilege to try a prototype of the MSI VR One, the backpack PC that makes untethered VR possible. The PC weights around 3.5kg (about 7.7 pounds), but it feels quite light once it's on your back. The technical specs are a CPU Intel Core i7-6820HK @ 3.6GHz, SSD Hard Drive and nVidia GTX 1070 GPU. It's extremely quiet, and from the vents blows a mild warm air, unnoticeable when wearing it. It runs on two removable batteries. The battery lasts for 1.5 hours of gameplay, and they can be fully recharged in 2.5 hours. Since you can carry this backpack around it does feature a battery. It’s compatible with most powerful virtual reality headsets like the HTC Vive and the Oculus Rift.