Easysens Funkschalter BJ is an universal switch insert with a maintenance-free, self-powered radio transmitter. The central plate can be glued or screwed in place and can be easily attached to glass and plaster. The integration is done by a special intermediate frame. By means of the battery-less and maintenance-free wall mounted radio keys, a wireless control of receivers based on the EnOcean technology and other consumers connected thereto is possible. A radio signal is produced when pressing and releasing a button. Dimmer and roller blind controls can be realized by evaluating the switching status of the receivers.