Microsoft is holding a massive event today and they will announce the Lumia 950 and Lumia 950 X smartphones. Likely, we will also see something about about HoloLens, Microsoft’s augmented reality headset. The star of the show will be the new Surface 4 tablet, which is presumed to be thinner and lighter. You can live stream the entire show on Microsoft’s website. The event will take place Tuesday in New York City at 10 a.m. ET (7 a.m. PT).