【2 x Upgraded Wearable Breast Pump】- MomMed breast pump has 3 modes and 12 levels for better imitating the baby's sucking motion. Moms can combine different modes and levels to optimize milk production in the most efficient and comfortable way, safe and painless. Mode selection: Stimulation, Expression, and Auto Mode | 【Anti-Leak Design】- This newer version of MomMed double-electric pump in Style has an important upgrade - It’s now a closed system and all-in-one design, meaning it’s safer and easier to clean. It is the most hygienic type of breast pump, as the barrier prevents milk leakage and reflow. Measuring correctly and choosing the right flange size help breast milk flow smoothly | 【More Invisible & Lighter】- The ergonomically designed semi-circular body fits perfectly with the breast, making MomMed portable breast pump S21 completely invisible when wearing bras. This budget-friendly portable pump can be used wirelessly and less than a pound, and you can pump while feeding your baby, driving, working, visiting friends, or eating out-you can do everything you need without letting your pumping get in the way | 【Convenient & Low Noise】- With both the LED screen and physical buttons, the pump has a longer service life and is less likely to be damaged. Comprehensively improve your experience: Being apparent to your eyes, simple operation, and accidental touch prevention. The sound is less than 45 dB while using the wireless breast pump. Not only sleeping babies won't be disturbed but moms will avoid embarrassment when pumping in the office or on the go | 【More Accessories, More Love】- MomMed wearable pumps include 2 x 24mm Silicone Breast Shields, 6 x Flange Inserts (17mm, 19mm, and 21mm, each in a pair), 1 Nipple Ruler, 6 Duckbill Valves, 4 Silicone Diaphragms, 2 Bra Adjustment Buckles, 2 Storage Bags, 2 Cleaning Brushes, 2 Type-C Charging Cables, 1 Instruction Manual, and 1 Breastfeeding Guide | 【Need Other Sizes or Parts?】- MomMed offers you more choice accessories in different sizes, you can Visit MomMed Amazon Store