PHILIPS AVENT DOUBLE ELECTRIC BREAT PUMP, ADVANCEDInspired by babys unique combination of suckling and massage, Natural Motion technology powerfully combines suction and nipple stimulation for quick letdown and milk flow. Express more milk in less time with a flange that stimulates the breast to express milk just like baby. It seamlessly adjusts from stimulation mode to expression mode', and applies just the right amount of nipple stimulation and suction for maximum milk flow. Based on milk flow