It is a great supplement and extending device  the network set-top box and bring you wonderful experience of watching movies and playing games. 
Materials: Uses ABS and diameter of 42mm spherical resin lens material without stimulation plastic sheet, environmental. 
Offers you super 3D picture effect and wonderful feeling. Simulating Viewing Distance: 
Offer you a 1000 inches big screen at the distance of 3m. 
Easy to put your smart phone into the 3D glasses Perfectly suitable your face when you wear the 3D VR GLASSES. 
Flexible and adjustable headband is suitable for different people. 
You will not feel visual fatigue and diz
Specifications: 
Colour: White & Black 
Material: ABS + Resin lens + Nylon + PU + Cotton 
Visual Angle: 92 ~ 98 Degrees 
Suitable: 4.0~6.0" Smartphone 
Item size: 19.5 * 13.5 * 10.0 cm 
Item weight: 401g / 14.47oz Package size: 22.5 * 15.2 * 11.8cm 
Package weight: 550g 
What included 
1 * 3D Virtual Reality Glasses 
1 * English / Chinese User Manual