Streamline 2N IP One installation with the Surface Mount Box. It allows you to mount the intercom on the surface of the wall with ease. It's particularly valuable for installers working with concrete walls looking for quick installation without recessed hole drilling. The Surface Mount Box fits over the 2N IP One like a glove. The sleek black design complements every colour option of the intercom effortlessly and the powder coating in combination with durable aluminium casting ensures long-lasting protection.