This premium range Tronic Bell switch in Ivory provides a screwless finish, is slim, has smooth edges, it has a shiny surface and has a big switch(es) to fit into the modern style of ones home or office. Bell push switches are traditionally used on a front door, but can also be featured elsewhere in a project. When you press a doorbell button, you complete an electrical circuit that allows electricity to flow through the doorbell's internal electromagnet thus producing the sound.