Fantastic, easy to use, the Calypso Double breastpump allows you to gently express milk from both breasts at the same time. This double expression helps increase and maintain the milk volume. The three different sizes of breast shell ensure that every mother can find the right size to suit her nipple. The soft Optiflow massage insert actively massages the breast and ensures efficient and gentle expression. Vacuum Seal technology gives 100% protection and prevents contamination of pump or milk,Provided with selection of breast shell sizes and soft massage insertCompact design and reduced sound level allow for quiet discreet expressionDouble or single express as desiredQuietest breastpump on the marketIndividually adjustable settings for vacuum and cycle (speed and suction) All Ardo breastfeeding products are manufactured in Switzerland from materials that are free from Bisphenol.