Niscomed Electric Breast Pump Model No EBP-01  , Dual sucking mode,double indicator light work prompt,stimulate for more milk intake, help lactagogue.Unique USB power supply mode, suitable for mobile power supply and convenient for both household use and outgoing use.Gas-liquid separation design unique anti flow device affectively prevent milk from reflex into pumps and avoid any damage , more safe for operation. That’s it and let the pump do the rest. 5. Cover the pump with lid to prevent any dust to go in. (Please note that the lid is for covering purpose only and it is not 100% leakproof.) It is advised to pour the milk into the bottles or storage bags for better storage. Tips: Massage your breast with a hot towel before using the pump would help the milk to be released quicker and easier.