2MP Indoor 18X Zoom Speed Dome IP Camera, WDR, 4.7-84mm Lens, 2-Way Audio, MicroSD/SDHC/SDXC Card Slot, H.264, ONVIF, 30 fps @ 1920x1080, Auto Tracking, Audio Detection, UL Certified, PoE+/12VDC/24VAC, -10°-50°C