Wearable Breast Pump - Suggested Mode Selection: Massage first and then pump, mimic the way your baby feeds and optimize milk production. Ensuring each mother produces more milk in less time, giving new mothers more choice and comfort. Intelligent upgrade design - LCD screen, clear at a glance. With memory function, 30 minutes timing shutdown, easy to operate. 1000mAh capacity battery, Type-C charging speed is faster, it can be used for about 80 minutes/2-4 times when fully charged. 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. Low Noise - Innovative suction technology, the sound is less than 50 decibels when in use, will not disturb sleeping babies. The cordless hands-free breast pump is convenient for mom to use anytime. The built-in bra adjustment buckle helps improve the fit of the breast pump. No Leakage - Silicone valve helps no milk leaks. TheWearable Breast Pump has a capacity of 180ml and is marked with a graduated line on the container. 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.