Hygeia FIT Pro Breast Pump with built-in lithium rechargeable battery, power cord, and backflow protection PAS. LCD, two-phase pumping with 6 levels of Stimulation and 12 levels of Expression, timer display to track pumping time. PAS Personal Accessory Set includes: (2) backflow silicone diaphragms, (2) backflow protector cases, (2) 24mm flanges, (2) 28mm flanges (2) duckbill valves, (2) bottles, (2) tubing, (2) locking rings and discs (2) tubing adapters for the FIT Pro, (2) connectors for use with Express tubing.