IP Camera DS-2CV2046G0-IDW Bullet, 4 MP, 2.8 mm, IP66, H.265/H.264, Micro SD/SDHC/SDXC, Max. 256 GB, Human and Vehicle Classification. Strobe Light and Audible Warning. Built-in dual antenna 2.4G Wi-Fi, up to 120m range in open area. Built-in microphone and speaker, support two-way audio.