i love this as a filler gift for xmas for the price it brilliant does what i sat on the tin so to speak .Turn your smart phone into the ultimate 3D machine for 3D games and split screen movies; works with over 300+ iOS/Android virtual reality apps on Apple App Store it has worked well with my phone . could not falt it so far .well made you can adjusted to fit head size just slide the phone or device in then use it ,you can also adjust the 3 d effect with a dial switch on top of the unit . the whole think fit well nice and snug fit i love it