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I have the Medela Swing Flex to thank for being able to provide breast milk to my child. Due to a difficult birth I have been unable to establish direct breastfeeding, however I am still able to provide my baby with breast milk using the Swing Flex by Medela. It is extremely portable, and gives you the option to plug in or use battery operated which has given me a tonne of flexibility. Because it is so lightweight and compact, I have pumped while doing my hair and makeup of the morning and doing the ironing and just hooked the pump unit up to my pants. I prefer this pump to others for the portability, the ease of use, and it being so efficient to run.