The Axis T6112 Mk II adds a microphone and I/O ports to your Axis cameras that do not already have this feature integrated. This device utilizes Portcast technology to use the camera's IP address, enabling audio and video streaming over the network with a microphone and I/O ports integrated into the camera. With its discreet housing, this device is suitable for installation on walls or ceilings indoors. It can be installed anywhere between the switch and the Axis camera, providing the microphone as desired.