It lets you do multitasking while pumping milk for your babies. (babyishcare.com)
If you enter the workplace, for example, you may have to pump milk for your baby at home. (pregnancy-info.net)
Lastly, your inability to maintain enough pumped milk for your baby could have more to do with overfeeding and a perception that your baby needs more than what you are producing. (evenflofeeding.com)