Soft massage cushions flex in and out, replicating baby's suckling action and stimulating a fast, natural let-down. Gentle draw vacuum mimics baby's suckling to create a steady milk flow that requires less pumping. Electronic memory learns and at the touch of a button, continues your personal pumping rhythm. 1 x 125ml/4oz and 1 x 260ml/9oz containers. 1 x extra soft newborn flow teat. Funnel cover and bottle stand included. Includes batteries and mains power lead. Can be used manually. Manufacturer's 2 year guarantee.