The Zomee Z2’s easy-to-use touch screen interface consists of just six buttons, and the digital screen displays information such as the current mode, the suction level, and elapsed time. Easy to operate even in the dark, the Z2’s exclusive alternating pumping mode rhythmically alternates expression between the breasts. The closed pumping system allows milk to travel straight from your breast to the bottle without coming into contact with the air, maintaining the highest level of hygiene for both you and your baby.