So you want to use your iOS or Android device to experience virtual reality or 3D content? The Goggle Tech Go4D VR headset has you covered. It features a gyroscope, an accelerator, and a head mount goggle, allowing you to play 3D videos and virtual realty games on your smart device.
You are not going to need any additional batteries to use this headset. Just bring your iOS/Android device, and you are set.