Transform your smartphone into a powerful observation tool with our Universal Phone Adapter Clip for Monoculars and Binoculars. Perfect for nature enthusiasts, birdwatchers, and amateur astronomers, this versatile accessory enhances your viewing and photography experience. Accurate Focusing: Designed to fit a wide range of eyepieces with diameters from 23mm to 50mm, this adapter ensures direct and accurate focusing. Whether using a screw-up, folding eyepiece, or eyepiece without an end, it provides easy imaging and a clear field of view, making it simple to capture stunning images through your optics. Full Compatibility: The elastic stretch clamp accommodates phones with a width range of 66mm to 95mm, supporting single, dual, and multi-camera setups. Simply align the main lens for optimal results. The adapter includes 2mm, 3mm, and 4mm EVA spacers to ensure your phone and clamp sit flush for a secure fit. Wide Applicability: Ideal for connecting your smartphone to telescopes, microscopes, birdwatching mirrors, and astronomical telescopes, this adapter supports both horizontal and vertical shooting modes. Easily switch between observation and photography to capture the perfect shot every time. Cell Phone and Goggle Protection: Equipped with a silicone strip groove, this adapter protects your phone from accidental button presses and prevents slipping. The anti-slip design also ensures no light leakage, delivering a seamless viewing experience. Ergonomic Grip Improvement: The adapter features a curved design on both sides, allowing you to apply pressure at the optimal force point. This ergonomic grip makes it easy to use and reduces fatigue during prolonged sessions. Firm Clamping: Built with a mechanical and technological aesthetic, the one-piece structure of this adapter ensures firm and anti-loosening clamping. Enjoy a secure and stable connection for reliable use during all your adventures. Upgrade your optical gear with our Universal Phone Adapter Clip and enjoy enhanced capabilities for observing and capturing the wonders of the world around you. Whether you're documenting wildlife or exploring the stars, this adapter is the perfect companion for your smartphone and optical devices.