All items from the HX system are compatible with each other and can be freely supplemented and expanded. The HX Brilliant radio receiver impresses with its simple and elegant design in glossy pure white. The HX system features an easy-to-use self-learning function for adding additional components. To extend the range, one or more range extenders can be connected. Additional transmitters, such as the HX radio motion detector or the HX radio door sensor, can also be integrated into the system. To avoid interference with other radio transmitters, the HX system offers 256 frequencies that the device learns automatically. The HX Brilliant wireless doorbell set includes a weatherproof transmitter (IP44) with a nameplate, which is splash-proof and already comes with a battery. Volume control: The volume of the doorbell is approximately dB. The receiver can play different melodies. Visual call signal: A visual call signal in the form of a white light appears with the melody. Call distinction: When using additional transmitters, a different melody can be assigned to each transmitter (e.g., front door/back door). Installation: The doorbell features a wall mount and a belt clip for easy installation.