As well as conventional switches, Gira also offers rocker switches and push rockers with large, touch-activation symbols for light, bell and door. That makes living easier for people with impaired vision and blind people. An acoustic element can also be set. Then not only ringing and door opening can be distinctly heard but also switching on the light. When the light is switched off though, no acoustic signal is generated. A reliable indication of whether the light has been switched on or off.