4 MP Outdoor Audio Fixed Dome Network Camera. High quality imaging with 4 MP resolution. Realizing Wi-Fi connection and easy installation. Provides real-time security via built-in two-way audio. Efficient H.265 compression technology. EXIR 2.0, advanced infrared technology with long IR distance. Water and dust resistant (IP66). Support micro SD/SDHC/SDXC card, up to 256 GB.