Infiray Unique UH50 Professional Hand Held Thermal Monocular - 640x512, 12?m VOx ,<25mk NETD, 50Hz, 50mm Objective Lens, 1440x1080 HD AMOLED display, 4-16 optical magnification, 1x/2x3x4x Digital Zoom with up to 20x eye piece, 20mm eye relief, WI-FI, built-in Storage 32GB, 10hr Battery life, built in Micro phone