The only single electric personal use pump with breakthrough 2-Phase Expression® Technology for maximum milk flow. First researched and developed for hospital breastpumps, 2-Phase Expression is an advanced pumping pattern that mimics a baby’s natural nursing rhythm by pumping in two distinct modes. Stimulation mode: To simulate your baby’s initial rapid sucking to start your milk flowing. Expression mode: To simulate your baby’s slower deeper sucks to express your milk gently and efficiently.        Includes: SoftFit breastshield 2 bottles and caps Bottle stand Power cord Shoulder/next strap Tubing Valve and membrane Drawstring bag