... .Visible operation system (LED), English operating instructions. 2.Rotary switch adjusting coffee quantity between 30ml to 240ml. 3.Programming ... key, programming the water hardness, temperature, time, auto switch on/off time, cups counter, aroma, and so on. ... strong. 6.Rinsing operation key and auto decalcification system. 7.Stream and hot water function. 8.Professional CAPPUCCINO frother ...