【Product standard】 VR goggle body dimensions: 215 * 125 * 107mm, weight: 324g, you can adjust the length of the band with the head strap, you will not feel stressed for a long time wearing. Sponge cushion is attached to the lid, and it does not hurt the surface of the smartphone. You can use it more easily. • [Aspherical Optical Lens] This product adopts an aspheric optical lens, has the function of cutting blue light, and has electromagnetic radiation protection function, so it reduces the pain of the eyes, prevents dazzling, asthenopia It will be relaxed. • [Pupil / Focal Length Adjustment] Since the pupil distance and focal length are different for each person, you can freely adjust the focus on the goggle and set it to the most visible condition. You can experience VR with the naked eye through adjustment even for nearsighted eyes. (There is a possibility that it does not pass even if it is extremely near-sighted.) • [Accessory] Bluetooth controller & earphone. If you purchase this product, you will receive Bluetooth controller & earphone as bonus. Please use earphones with 3.5 mm terminal earplug type and batteries for Bluetooth controller with 2 type 4 "Dry batteries are not included." Please note: iPhone is not compatible with Bluetooth controller because of the closing nature of IOS system. In connection state, only volume can be adjusted, Please understand that it is not bad.