A combination of a household appliance and an external electronic device, said household appliance comprising: - a housing with an outer wall forming an outer surface of the household appliance, - a treating seat formed in or at the housing and adapted to accommodate or support household products in a treating position, - at least one treatment device arranged inside the housing and operable for carrying out a treatment at the treating position and subjecting the household product to said treatment, - at least one treatment detector at least partially arranged inside the housing and configured to detect a value of a treatment parameter of the treatment carried out by the treatment device, - optionally, at least one anomaly detector at least partially arranged inside the housing and configured to detect a quantity indicating an operating anomaly of the household appliance, - an electronic control system arranged in the housing and in signal connection with the treatment device and with the treatment detector and configured to control the treatment device depending on a treatment program and depending on the value detected by the treatment detector, - a user interface in signal connection with the electronic control system, said user interface comprising: - a button for turning ON and OFF the household appliance, - a first execution button, the activation of which starts a fixed treatment program which is preset with preset and invariable treatment parameters, - a second execution button, the activation of which starts a versatile treatment program which is preset with treatment parameters which can be set by the user, - a coupling button, the activation of which carries out a wireless communication connection of the electronic control system with said external electronic device, which is separate from the household appliance, for example a smartphone or a tablet computer, for selecting and setting said settable treatment parameters of the versatile treatment program by means of the external electronic device. - a housing with an outer wall forming an outer surface of the household appliance, - a treating seat formed in or at the housing and adapted to accommodate or support household products in a treating position, - at least one treatment device arranged inside the housing and operable for carrying out a treatment at the treating position and subjecting the household product to said treatment, - at least one treatment detector at least partially arranged inside the housing and configured to detect a value of a treatment parameter of the treatment carried out by the treatment device, - optionally, at least one anomaly detector at least partially arranged inside the housing and configured to detect a quantity indicating an operating anomaly of the household appliance, - an electronic control system arranged in the housing and in signal connection with the treatment device and with the treatment detector and configured to control the treatment device depending on a treatment program and depending on the value detected by the treatment detector, - a user interface in signal connection with the electronic control system, said user interface comprising: - a button for turning ON and OFF the household appliance, - a first execution button, the activation of which starts a fixed treatment program which is preset with preset and invariable treatment parameters, - a second execution button, the activation of which starts a versatile treatment program which is preset with treatment parameters which can be set by the user, - a coupling button, the activation of which carries out a wireless communication connection of the electronic control system with said external electronic device, which is separate from the household appliance, for example a smartphone or a tablet computer, for selecting and setting said settable treatment parameters of the versatile treatment program by means of the external electronic device.