OTS-HD series gets its biggest update ever! Now powered by the Obsidian “T2” Core, this thermal monocular has never been so versatile. Finally take photos and videos directly to your MicroSD card. Access the gallery via WiFi and view your video collection through the ATN Obsidian App. Featuring the same powerful sensors and features of the Smart HD family, the OTS sets a whole new standard for thermal monoculars.