This demonstration video discusses and shows the features of the Oceanic DataMask HUD (Heads Up Display) Air/Nitrox Computer Mask. The DataMask features hoseless air/nitrox integrated technology with an in-mask digital optic system. There are several dive modes which include Air, Nitrox, Gauge and Free Dive Modes. The DataMask HUD features Audible and Visual Alarms with User Alarm Acknowledgment. There is backlighting may be adjusted underwater for brightness as well as full-time or on demand use. The DataMask HUD includes ACI PC Download and Settings Upload Software and USB cable. Another feature is the highly magnified image of the LCD panel. It calculates tank pressure and breathing rate as well as calculates current depth, ascent time and decompression status all in your mask display.