[Wearable & Hands Free] Integrated invisible breast pump, easy to wear, freeing your hands for playing with your lovely baby, reading, and more, giving you great efficient milk pumping experience. [3 Modes & 9 Levels of Suction Adjustable] With massage/ expression/ mixed modes for option, imitating the baby's feeding mode, making milk suction more smooth and comfortable; with simple buttons and large clear display screen, easy to adjust. [Overflow-Resistant and Backflow-Proof Structure] Scientific design helps to prevent milk leakage, no milk wasting and contamination; made from high-quality ABS, PP, and silicone material, secure for use, easy to detach and clean. [Built-in Battery] Built-in 1100mAh large capacity battery, long working time up to after fully charged and USB charging provide more convenience for on the go; adopt innovative low-noise pumping technique, does not disturb a sleeping baby.  [Easy for Carry] Portable compact size allows you to put it into a handbag, and light weight reduce carrying burden, mothers can pump at anytime and anywhere, convenient for work and travel. Specifications: Color: White Material: ABS, PP and silica gel Voltage: DC 5V Power: 5W Battery Capacity: 1100mAh Milk Collector Capacity: 150ml Product Size: 15 * 11.5 * 7cm/ 5.9 * 4.5 * 2.7inch  Product Weight: 302g/ 10.6oz Package List: 1 * Breast Pump 1 * Extra Duckbill Valve 1 * Dust-Proof Cover 2 * Leak-Proof Replacement 1 * USB Cable 1 * User Manual