Medela Harmony premium 2-phase manual breast pump incl. Calma systemBreastfeeding and breast milking are no longer a lengthy and painful thing. For all mothers, Medela has created a practical two phase suction machine Harmony premium . The device works in two steps. The stimulation phase comes first. The breast is gently massaged to release the milk and allow it to flow easily. This part is extremely important so that suction is not unpleasant or even painful for a woman. After massaging comes the second part, namely