1.BOBOVR Z3 is an intelligent adjustable virtual reality helmet, it perfectly compatible with 4" to 6" smartphone. With this BOBOVR Z3, people can watch huge screen 3D movies, 
2.360 panoramic videos and immersive games. The IPD (interpupillary distance) and focal distance is easy to adjust, anti-fog design, built with soft PU leather face mask, very comfortable to wear.
3.Much cheaper than Oculus Rift DK2 & Gear VR, much better performance than google cardboard DIY Toolkit
 
Specification:

Model Name: BOBOVR Xiaozhai Z3
Color: White + Black
Item Size: 220*130*107MM
Lens: HD Optical PMMA Aspherical Lens, φ40mm,focal length 55mm
Net weight: 300g
Compatible Phone Size: 4" to 6" Smartphone with 1080P (or above) Resolution, phone width ≤85mm, length ≤160mm
G.W: 0.583KG
 
Package List:

1 x BOBOVR Xiaozhai Z3 3D VR Glasses
1 x Cleaning Cloth