1、[Wearable \u0026 Hands Free] Integrated invisible breast pump, easy to wear, no need to hold it by hand, freeing your hands for playing with your lovely baby, reading, and more, giving you more efficient milk pumping experience! 2、[3 Modes \u0026 9 Levels of Suction Adjustable] Offers massage, expression, and mixed mode for option, imitating the baby\u0027s feeding mode, giving mothers more comfort; with simple soft buttons and indicator light, easy to adjust. 3、[No Milk Leakage] Overflow-resistant and backflow-proof structure, effectively preventing milk from wasting and contamination; no tubes, easy for assembly; made from high-quality ABS and silicone material, secure for use and easy to clean. 4、[Built-in Battery] Built-in 1200mAh large capacity battery, has long working time after fully charged, support convenient USB type-c charging; adopt innovative pumping technique, the sound is low when used, will not disturb a sleeping baby. 5、[Portable Size and Light Weight] Measures 13 * 11.5 * 7.5cm/ 5.1 * 4.5 * 2.9inch, easy for carrying, allowing mothers to pump at anytime and anywhere, convenient for work and travel.