Describe 1.Efficient Pumping - Our Electric Breast Pumps Have 2 Modes To Mimic Baby's Feeding Patterns For Optimized Milk Expression. 2.Each Mode Has 5 Levels Of Intensity Adjustment. Ensure That Every Mother Can Find Her Own Rhythm And Produce More Milk In A Shorter Time. 3.practical Functions - Compared With The Touch Screen, The Physical Keys Have A Longer Service Life And Are More Difficult To Damage. Innovative Pumping Technology, The Sound Is Less Than 55 Db When Used, So It Will Not Disturb A Sleeping Baby. 4.Breast Pump Flange Has Soft Edges And Is Made Of Food-grade Soft Silicone. Skin-friendly, Safe And Bpa-free. At The Same Time Maintain A Good Seal To Achieve The Best Suction. 5.Max Range Of Suction Value: 280300mmhg 6.Professional Design - Closed System, Silicone Protection Valve Helps Prevent Milk Leakage And Protect Mother And Baby From Bacteria. Momcozy Breast Pump Has A Capacity Of 180ml, And The Container Is Marked With A Graduation Line. The Recommended Best Breast Pumping Capacity Is 120ml. 7.Portable & Wireless Use - Lightweight And Portable Pump And 800 Mah Capacity Rechargeable Battery For On The Go Pumping. After Fully Charged, It Can Be Used For About 80 Min/3-6 Timesr