With the step-by-step increase of housing prices, more and more people are crowded into so-called small high-rise buildings, and the previous doorbells have been replaced by the current intercom access control systems. Dieter Volkers from the Netherlands has designed a very interesting door handle. The round head of the outdoor end uses soft rubber material, and what is more unexpected is that it will beep like a horn when pressed lightly to remind the owner of the visitor. Isn't it full of love?