How to get a comfortable VR experienceIf you have poor eyesight・ it is recommended to wear contact lenses. Use the wheel on the top to adjust the pupil distance. The more you can adjust to your eyes・ the less likely you are to feel sick from a virtual experience.Bluetooth controller: As there is no magnet for on-screen elements selection・ a controller is an alternative solution. Not all apps need a controller・ especially you use it to watch 3D movies only.VR apps and 3D movies SourcesThere are lots of VR apps available in google play and apple app store. 3D movies need to be found on the internet. Search 3D SBS moviesideos/torrent in google/bing/yahoo. Enjoy your personal IMAX.About Google cardboard QR codeWe recommend you to scan our cardboard QR code so that you will have a better VR experience with cardboard app. Less image distort・ full VR immersion.Note: as the pupil distance is different from people to people・ you¨d better to use the PD adjusting wheel on the top to adjust.Warranty: 45 days free replacement service・ 12 months warranty for all products from ELEGIANT.<br />Specification:Color: Black Size: About 20 X 14 X 10cm Suitable for Android and IOS smart phones with 3.5-6.0 Inch screen size・ the max length*width is 4.62 X 2.46 inches. Fit to: Samsung Galaxy Mega 2/Galaxy Note 4/Galaxy Note 3/Galaxy S6 Edge/Galaxy S6/iPhone 6/iPhone 6 Plus/LG G3/SONY Experia T2 Ultra/Xperia Z3+/Nexus 6P/HTC One Max/ Desire 816/One M9/ASUS Zenfone 2 etc.<br />Package Included:1 x 3D VR Headset1 x Cleaning Cloth1 x User Manual