Portable Electric Breast Pump Kit: Compact and slim, lightweight design(only 2.2 pounds), USB charger, can be charged by power bank, computer, perfect for working mother to breastfeed during travelling. 5 Working Modes: Auto/ Stimulation/ Massage/ Expression Modes for option. Pump motor works at low noise for breast milk suction and breast massage. What's more, Memory Function can help to record the most comfortable way to breast expression for your later use. 2 Switchable Pumping Condition: Easily switch single style to double pumps via the T-cock tubing, large LCD screen displayed for night use, with a petal-style massage cushion help you gently stimulate the breast to secrete. 36 Adjustable Suction Density Levels(12-38kpa): Mimics the baby's sucking way, starts with short and quick sucks to deeper sucking pattern, which meets the different milk pumping demands. Closed System with Back-flow Protector: Safe and hygienic material - BPA free, all parts made from edible Food Grade Silicone, contain no harmful substances, safe and hygienic for baby and mom. Dimension: Motor Size: 4.33 x 1.57 x 4.33 inch (11 x 4 x 11 cm) Flower Massage Cushion(Shield): 8cm Pump Body: 5.5cm, threading is common size Flange Size: 24mm Bottle: 160ml/ 5.5oz; D 4.5cm Product Weight: 2.2 pounds Input: 100V-240 V Frequency: 50~60 Hz Power Supply(Wattage): 5 W; DC 6 V Current: 1 A Package Contents: 1 x pump motor 2 x pump body 2 x valve 1 x single tubing 1 x double tubing 5 x tubing connector 2 x milk bottle 1 x USB cable 1 x manual