17.7X Head-Mounted Eye Protection and Adjustable Blue-Light-Blocking Screen, Vision Training Equipment, with Objective Lens + 3 Eyepieces, for Sitting Upright

Welcome! Happy shopping! Note: You may experience some dizziness at first, which is normal. It takes 3-5 days to adjust (depending on your individual needs). Avoid purchasing if you're feeling dizzy! Product Specifications: Product Name: Vision Protection Training Device Objective Lens Dimensions: 123 x 89 mm Eyepiece Dimensions: Reading and Writing 110.3 x 46.7 mm; Large Screen Lesson 110.8 x 32.2 mm; Piano and Music 109.8 x 45.8 mm _Plastic (ABS + PC), Magnets, Optical Glass, Zinc Alloy, Stretch Fabric Packaging Dimensions: W347 x L208 x H106 mm Quantity: 1 set Total Weight: 1185.2 g + 50 g Package Contents: 1 x Eye Protection Training Device

• 【Head-mounted, blue-light-blocking zoom goggles】: Adjustable weight plates on top of the head enhance wearing comfort, and height adjustment with a knob makes it easy. The lens angle can be freely adjusted for a variety of eye needs, allowing you to always maintain optimal viewing angles.
• 【Small lenses, wide field of view】: 17.7x magnification allows for magnified viewing, with a viewing distance of up to 8 meters. Research suggests that looking at distance can relax eye muscles, reduce visual fatigue, and prevent myopia. A 0° head-down angle places approximately 5 kg of pressure on the cervical spine, eliminating the need to lower your head. Sit upright and naturally straight for easier eye use.
• 【Free-curvature】: Traditional lenses are prone to blurring or distortion at the edges of the eye. Free-curvature lenses are precisely designed to optimize image quality at the edges, enhancing comfort and providing a wider, clearer field of view.
• 【Physical Optical Principle】: Zoom goggles use optical lenses to alter the light path, relying entirely on physical principles to adjust viewing distance and magnify images. They significantly reduce the impact of blue light and emit no electromagnetic radiation, ensuring peace of mind for users of all ages.
• 【Lightweight and Convenient】: Weighing only 236g, it's ultra-light and effortless. While still lightweight, it's even more functional. Foldable, measuring just 29cm (W) x 19cm (H), it fits easily into your bag anytime, anywhere, eliminating any extra bulk and making it incredibly convenient to carry around.