This product has been repaired, restored and tested for functionality. Product may have noticeable cosmetic blemishes (such a light scratches). Any defective modules identified in testing are replaced. Each item undergoes a final inspection prior to being sold as a Refurbished item. MORE DETAILS: Displays - Dual 1440 x 1600 LCDs, full RGB per pixel, ultra-low persistence global backlight illumination (0.330ms at 144Hz) Framerate - 80/90/120/144Hz Optics - Double element, canted lens design Field of View (FOV) - Optimized eye relief adjustment allows a typical user experience 20º more than the HTC Vive Inter-pupillary Distance (IPD) - 58mm - 70mm range physical adjustment Ergonomic Adjustments - Head size, eye relief (FOV), IPD, speaker positions. Rear cradle adapter included. Connections - 5m tether, 1m breakaway trident connector. USB 3.0, DisplayPort 1.2, 12V power Tracking - SteamVR 2.0 sensors, compatible with SteamVR 1.0 and 2.0 base stations Audio - Built-in: 37.5mm off-ear Balanced Mode Radiators (BMR), Frequency Response: 40Hz - 24KHz, Impedance: 6 Ohm, SPL: 98.96 dBSPL at 1cm. Aux Headphone Out 3.5mm Microphone - Dual Microphone Array, Frequency response: 20Hz – 24kHz, Sensitivity: -25dBFS/Pa @ 1kHz Cameras - Stereo 960 x 960 pixel, global shutter, RGB (Bayer)