Acer Windows Mixed Reality headset (developer Edition) with OEM VR controllers

Specs

Display Size: 2.89” x 2 Resolution: 2,880 x 1,440 (1,440 x 1,440 per eye) Refresh Rate: 90Hz - Using HDMI 2.0, 60Hz - Using HDMI 1.4 Tracking Sensors: Gyroscope, Accelerometer & Magnetometer Tracking Camera: Inside Out B+W VGA camera Connectivity: 1 x HDMI 1.4/2.0 & 1 x USB 3.0 (Cable Length: 13 feet) Includes: Headset & Cable Field of View: 100° Maximum Interpupillary Distance: 2.48" Pixel Density :706 ppi Batteries Required; 2 AA (not included)