ALWAYS READY TO HAND Innovative accessories that are perfectly tailored to these binoculars enhance the functionality of your equipment. Apart from being user-friendly, harmonious design also plays a key role. Our accessories offer you all kinds of useful add-ons, allowing you to tailor your SWAROVSKI OPTIK binoculars to your personal needs. PA adapter ring for ATX/STX Using the right adapter ring, you can connect your smartphone in an instant to your ATX/STX spotting scope. The appropriate thread makes it quick and easy to assemble.