[3 Modes & 9 Level of Suction Adjustable] Massage mode helps to stimulate breast before expression, relieving mothers' pain of breastfeeding; with large clear display screen and sensitive touch panel for easy operation. [Overflow-Proof And Backflow-Resistant Structure] Effectively preventing milk from wasting and infection, keeping milk fresh and clean; made from high-quality ABS, PP and silicone gel, friendly to skin and easy to clean; no tubes, easy to assemble. [Low Noise & Built-in Battery] Adopt advanced technology, produces smooth vibration and the sound is below 60dB; 2000mAh large capacity battery, can be used for a long time after fully charged. [Compact & Portable] Mini size and light weight, convenient for easy storage and portable application, allows mothers to pump at anytime and anywhere, good for work, travel and on the go. Specifications: Color: Pink Material: ABS, PP, and silica gel Power Adapter Input:100-240V~ 50/60Hz Power Adapter Output: 5V - 1000mA Nominal Voltage: 5V Rated Current: 1000mA Battery Capacity: 3.7V/ 2000mAh Timing: 30 minutes Sucking Force: 50mmhg--380mmhg Noise Limit: <60dB Product Size: 20 * 8 * 7cm/ 7.8 * 3.1 * 2.7inch  Product Weight: 242g/ 8.5oz Package List: 1 * Set of Breast Pump 1 * Extra Breast Covre 1 * Extra Duckbill Valve 1 * Milk Bottle Cover 1 * USB Cable