The Swarovski dG Digital Guide Monocular is the first long-range optical device to allow you to identify and document your sightings and share them with other people. The full potential of the dG is unlocked when you link it to your smartphone. You need the Swarovski dG app to connect your dG to mobile devices. It also allows you to connect to apps like Merlin Bird ID and dG Mammals, which help you to identify and share your sightings. FeaturesLong-range allows your to identify and document your sightingsAbility to link to your smart phoneConnect through the Swarovski appShare your sightings