- Bright, sharp viewing from advanced optics: fully coated lenses maximize light transmission for a brighter field of view and crisp images with no black streaks. - Smartphone compatibility: includes a cell phone holder and smartphone adapters to project telescope images onto your phone. The 42mm wide objective with multi-layer broadband coating and Good-power ZOOM optics deliver better light transmission and resolution for bright, clear images. - Flexible zoom and wide view: 10-30X magnification with a wide field of view provides comfortable, expansive viewing, sharper details, and an immersive experience. Ideal for hiking, camping, bird watching, sports, concerts, travel, and scenic viewing. - Optics and comfort for long sessions: advanced full multilayer coatings and a large BAK4 prism maximize light transmission, reduce stray reflections, and produce clear, high-contrast, color-accurate images. Glasses-friendly and comfortable for extended outdoor use without dizziness.