Schneider Electric Merten inserts audio socket MTN466914 in color anthracite is an insert for loudspeaker. Its matching mounting box can be recessed into the surface of the wall with flush type. The device's fixing mode is by screws and claws. The audio socket is made of metal, plastic, making it as resistant as possible. Being environmentally friendly, this audio socket is a green premium product too. And it is mercury free. This audio socket is SVHC (substances of very high concern) free too. Besides it is halogen free halogen free, which is good for your health. Merten System M is a switch range that offers flexibility and a great variety of functions, comfort, efficiency, and is the ideal solution for all living spaces.