From the Microsoft Blog:
Each IDOL 4S with Windows 10 comes packaged with virtual reality goggles included as part of the in-box bundle. The headset is designed so that the phone snaps into the goggles for an user-friendly virtual reality experience where you can play three dimensional games or watch 360 degree videos. When you buy an IDOL 4S, you’ll also receive a free 45-day trial for Hulu Plus, an additional 30-day trial for Groove Music and a free copy of the Windows 10 Mobile game Halo: Spartan Assault.
A new VR-supporting Windows Phone got announced today: Alcatel IDOL 4S