Smart-Switch wireless can be combined with the Busch-Jaeger switch programme Busch-balance SI and Busch-art linear. Smart light/blind switch for wireless remote control of Busch-flexTronics wireless or Busch-free@home wireless systems. Wall transmitter, 2/4 channels. Consisting of Smart-Switch wireless insert 62721/01 U-WL, mounting plate and intermediate ring. Can be used in Busch-flexTronics wireless room control with up to 32 devices. Can be integrated in Busch-free@home wireless via system access point with up to 150 devices. At least one Busch-flexTronics wireless device or one flush-mounted actuator wireless is required. Programming with the Busch-free@home Next app or via the web interface of the system access point. Battery-free switch, no connection to mains voltage required. Particularly environmentally friendly, sustainable and maintenance-free. Transmission energy is generated during switching. Maximum functional reliability thanks to 2.4 GHz mesh technology. Includes mounting plate for installation on smooth walls or switch boxes. Can be mounted anywhere in the room using the supplied adhesive tape and mounting plate.