[1] Windows Mixed Reality requires a compatible Windows 10 PC and headset, plus the Windows 10 Fall Creators Update. PC requirements may vary for available apps and content. Experience, apps and content coming on or around 10/17/17.
[2] Based on average time between plugging in a Windows Mixed Reality headset to a compatible PC and the start of the Windows Mixed Reality experience. Additional time may be required to update your PC to the Windows 10 Fall Creators Update.
[3] To experience sound, Cortana and voice dictation, compatible mic-enabled headphones with 3.5mm jack (USB won't be able to connect to headset) have to be attached, plugged in to the audio jack on the HMD. Consumers may find compatible headphones by looking for the Cortana badge or Circle icon on product packaging and websites.