[2 Modes , 9 Level of Suction Adjustable] Provide more pumping choices for you, satisfying mothers, different needs, always choose the most comfortable one; with large clear LED display screen and simple buttons, easy to adjust. [Overflow-Proof And Backflow-Resistant] Effectively preventing milk from wasting and contamination; great structure design, no tubes, easy for assembly; made from high-quality ABS, PP and silicone material, friendly to skin, easy to clean. [Low Noise , Built-in Battery] Silent design, less than 55dB, baby can sleep at ease; built-in 1200mAh large capacity battery, can be used for about 3 hours after fully charged, support convenient type-c charging through power bank, AC adapter, laptop, and more. [Compact , Portable] Mini size and light weight, convenient for easy storage and portable application, provide more convenience for mothers who need to work, also good for travelling. Specifications: