Modules make the device with great expansibility Anodized front aluminum panel; IK07 Supports voice and video communication 2 MP high definition fisheye camera with 160° view range Access control function; controls two locks Compatible with 2-wire interface and RJ45 interface Surface mount and flush mount IP65 (Apply silica gel to gaps between the device and the wall. Liquid sodium silicate is recommended. For details, see the quick start guide.) All the modules are sold separately