Our unique pump is designed with an electronic memory that puts you in control by learning and continuing your personal pumping style.Includes:Manual pump parts for when power is not available: 1Spare parts: 1 pcBreast milk container (260 ml/ 9 oz): 2 pcCool pack: 4 pcExtra soft, Newborn Flow Nipple: 2 pcPower cord: 1 pcTeat travel pack: 2 pcISIS iQ DUO TwinHelps you breastfeed longerMore milk, naturallyStimulate and ExpressGentle vacuum mimics baby's suckling for steady milk flowSoft massage cushions trigger natural let-down, like baby.Soft massage cushions - Patented massage cushions flex in and out, replicating baby's suckling action and stimulating a fast, natural let-down.