Given the massive investment in VR, it was only a matter of time before someone figured out how to get rid of one of its biggest limitations — the tethering cord. Whether you’re using an HTC Vive, Oculus Rift, or one of their lesser-known competitors, they all rely on a cable to relay high-resolution video, and sometimes other information, in real time. Startup TPCAST is changing that, with a $220 wireless accessory that will work with the HTC Vive when it ships early next year