This is the Future of Optics! The Obsidian 4 application is here to enhance your experience when using the ATN X-Sight 4K and/or the ThOR 4 product lines. This application connects your smart phone, or tablet, to your ATN device via Wifi. This connection allows you to watch a live video stream of your hunt on your smart phone or tablet. The Obsidian 4 app lets you to adjust/change the various settings on your ATN Smart scope, and review the images and videos stored on your scopes microSD card.