Opera Hospital Grade Rechargeable Double Electric Breast Pump Unimom?s Newly Designed Hospital-grade Breast Pump Was Created To Make Expressing Breast Milk As Comfortable And Efficient As Possible The Innovative Interface Enables You To Create And Save Custom Settings For Future Use With Unique Massage And Expression Settings This Unit Can Calibrate Each Mode Individually Vacuum Strength And Cycle Speeds Can Be Adjusted Manually And Uniquely For Either Breast Enabling A Personalized Experience Adjust Between Settings And Toggle Back And Forth Between Sides Depending On Your Unique Needs For A Customized Experience. Box Includes: Opera Pump Body 2 Breast Shields (24mm) 2 Breast Shields (27mm) 2 Bottles (150ml) With Caps Disks And Covers 2 Air Tubes 2 Diaphragms 2 Diaphragm Caps 1 Ac Adapter 1 Instructions Manual