Food Grade Silicone -breast pump accessories are made of soft food grade silicone that is easy to remove and clean while maintaining a good seal for optimal suction. Maximum suction value range: 280300mmHg. Professional Breast Enhancement - Silicone valve helps prevent milk leakage. The breast pump has a capacity of 180ml and the container is marked with a scale line. The recommended optimal amount of milk to express is 120ml. The portable breast pump sucks every drop of breast milk. Correctly measure and choose the right flange size to help breast milk flow smoothly. Low Noise - Innovative suction technology, less than 55 decibels when in use, will not disturb sleeping babies. Physical keys last longer and are less likely to be damaged than touchscreens. The built-in bra adjustment buckle helps improve the fit of the breast pump. Feature Upgrade - The battery capacity of the breast pump is increased to 1200mAh, and the compact and portable breast pump allows mothers to breastfeed anytime, anywhere. After fully charged, it can be used for about 80 minutes/4-6 times, and the automatic shutdown function every 20 minutes helps mothers to express breast milk comfortably. Important Information Legal disclaimers regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure or prevent any disease or health condition. Package size: 18x 15x 11.5cm; 430g