On 12mm thick, it is small and powerful; It communicates upto 3 Km *. It communicates through the existing cabling. It brings a concentrate of intelligence to the electrical installation . Very easily, it links any switch with lighting or the device of your choice without external controller, just use a badge. Depending on the evolution of your needs, the programming can be adapted at any time to create two-ways switches, a general switch or lights scenarios. Get a complete home automation.