Plastic VR box, with a nylon head strap and memory foam cushioning, View Angle: 70-80°, view distance: Watch 1000 inch screen in 3 meters, Lens transmittance: OD 42mm aspheric optical hard resin lens, support within myopic 600 degrees, Lens enlargement factor: 1-2% / 1.5-2, compatible with both Android and iOS phones of sizes 3.5''-6.0''