Key benefits - Progressive magnification for clear close-up viewing without the need for power - High-definition zoom optical technology delivers sharp detail with battery-free operation - Pocket-sized and lightweight for easy carry and on-the-go use - Enhances 3D viewing with a stronger 3D effect - Helps reduce eye strain and fatigue during long viewing sessions What it is and how it works - A pocket magnifier with progressively enhanced magnification - Uses high-definition zoom optical technology that requires no battery - Compact size and light weight make it convenient for travel and daily use Design and portability - Small and lightweight, easily fits in a pocket, purse, or bag - Designed for comfortable handling during extended viewing Performance and compatibility - Delivers clear magnified views with stable optical performance - Supports enhanced 3D viewing experience when watching compatible content Usage scenarios - Watching 3D movies or videos to enjoy stronger depth perception - Reading small print, labels, or product details without eye strain - Close-up inspection of small components, crafts, electronics, or artworks Notes - Material details are not specified in the description - No batteries are required for operation