See the shape of VR to come with VIVE Pro Eye, the system built to meet the needs of the most discerning creators and commercial clients. Improve simulations, insights, and processing with precision eye tracking-a game-changing technology that enables you to see what your users see and act accordingly. Contents: VIVE Pro Eye headset, link box, DisplayPort cable, USB 3.0 cable, power adaptors, two Controllers (2018), two base stations 2.0, user guide and safety guide. VIVE Pro Eye is capable of supporting up to a 32' x 32' area using four Steamer Base Station 2.0 Units. With two Steamer Base Station 2.0 Units, it will support up to a 22'11” x 22'11” area. With two Steamer Base Station 1.0 Units, it will support a 11'5” x 11'5” area.