Breastfeeding is one of the most beautiful and intimate experiences a mother can share with her baby. The Pure Expressions Dual Channel Electric Breast Pump mimics a baby's natural nursing rhythm and suckling pattern. With28 pumping state options to suit your comfort level, the Pure Expressions Breast Pump is a great choice for expressing milk from both breasts at the same time. Excellence matters when it comes to you and your baby. The two-phase expression includes both Stimulation and Expression modes, imitating the natural breastfeeding experience, which means more milk in less time. Indicates Stimulation or Expression Phase 5 different suction strengths allow for the easy adjustment 30-minute timer, memory function auto-saves last pumping session. Each Pump comes with the following: 27mm pump kit w/silicone insert x2, Dust cover x2, 4oz wide neck bottle x2 , Tubing x2, Pump motor x1, 9V power adapter x 1, External Battery Pack x1 and Feeding nipple set x2.