Features Comfortable 3D image through two individual panels. Android Operation System. Enjoy virtual 120 inch high resolution virtual image at 4 meter away privately. WiFi Internet operation with built-in battery up to 3 hours. Individual adjustable interpupillary distance and myopia focus. Support Miracast, connect to your mobile phone wireless. Control buttons and Connectors Control Button: Power, Up / Dowm / Right / Left / OK, Home 2D/3D Right-Left Selection Micro-USB x 1 (OTG) USB x 1 ( Host ) TF Card x 1: Support 64GB Earphone Jack: Stereo 3.5mm dia x 1 Power input: Through Micro-USB Build-in 2.4G wireless mouse module (option item) Specification Storage: 8GB, (Optional 16GB) Resolution: 1280 x 800 x RGB x 2 (2 panels) Contrast Ratio: 1000 : 1 Refresh Rate: 60Hz Optical Distoration: Less than 1.5% FOV: 56o each eye Myopia focus adjustable: upto 500 o Adjustable interpupillary distance: 60 â?? 70 mm Gyro-Control: 6 axials WiFi: Built-in 802.11b/g/n BlueTooth: 4.0 Battery: Li-Polymer 2800mAh Main Dimension (H x D x W): 57 x 80 x 173 mm Weight: 300g