YAHEY&reg; 2nd Gen Virtual Reality Head Gear VR Box 3D Glasses w/ Focal Length Adjustment Setting for 3.5 inch to 6.0 inch Smartphones, Bluetooth Remote Controller White Use high quality ABS and 42mm diameter spherical resin lens material without stimulation plastic sheet, environmental, high quality, lowering down the distortion to the minimum when magnifying the images and providing wider view; You will not feel visual fatigue and dizzy even you use it for a long time because of the resin lens The T-shaped straps make it adjustable for different people. Its design can also help decrease the pressure on around your eyes so you will feel much more comfortable when enjoy the movie or game; Simulating Viewing Distance: Offer you a 1000 inches big screen at the distance of 3m; Offers you super 3D picture effect and wonderful feeling Easy to put your smart phone into the 3D GLASSES - Easily pull the smart phone storage box out, the put your smart phone in it. Perfectly suitable your face when you wear the 3D VR GLASSES; It is perfect for people with myopia under 600 degreed. You can get free from your glasses while enjoy the 3D movies or games with the virtual reality glasses, bringing you better experience Adjustable pupil distance and sight distance (adjustable on pupil distance and object distance), satisfying different groups of people. - Optical Axis Sliding Control function: You can slightly adjust the position of the spherical resin lens through moving the button on the top of the 3D VR GLASSES so as to get a better experience of watching movies. You can get a viewing angle of between 70 to 80 degrees/ FOV Suitable for almost all kinds of smart phones (Android / IOS, etc) that screen between 4.7~6.0 inches; Both sides holes of the 3D VR GLASSES is specially designed for the headset / data / charge cable, letting you charge your smart phone (You had better not charge your phone during enjoying movies)