Wearable Breast Pump - Our breast pump has 3 modes and 9 levels to better imitate the baby's sucking movement. Mothers can combine different modes and levels to optimize milk production in the most efficient and comfortable, safe and painless way. Mode selection: Stimulation, Expression and Automatic Mode.Anti-leakage Design-This latest version of double electric pump in new style hasAn important update - it is now a closed system and complete design, which means it is safer and easier to clean. It is the most hygienic type of breast pump as the barrier prevents milk leakage and backflow. Measuring correctly and choosing the right flange size helps breast milk flow smoothly.More Invisible and Clearer-The ergonomically designed semicircular body fits perfectly with the breast, making our portable breast pump completely invisible when wearing bras. This affordable portable pump can be used cordless and less than a pound, and you can pump while feeding your baby