This was my own personal (now gently used) Pump in Syle Advanced breastpump that I am now selling.

Highest Performing Retail Pumps Available! With breakthrough Natural Expression™ pumping.

The only electric retail pump with breakthrough Natural Expression pumping for maximum milk flow. First researched and developed for hospital breastpumps, Natural Expression is an advanced pumping pattern that mimics a baby’s nursing rhythm by pumping in two distinct modes.

Let-down mode: Simulates your baby’s initial rapid suckling to initiate faster milk flow.
Expression mode: Simulates your baby’s slower, deeper suckling for maximum milk flow in less time.

• Feels more like your baby than any other retail pump
• One-touch ‘let-down’ button designed for faster milk flow
• Customized pumping with adjustable speed and vacuum control
• Stylish bag contains everything you need to pump
• Battery Pak for pumping anywhere, anytime

It's all in the bag
*Pump In Style Advanced Breastpump with Natural Expression pumping in a stylish black microfiber bag
*Removable cooler carrier
*Removable motor unit
*At least four sets of double pumping accessory kit (breast flanges, yellow valves, membranes)
*Cooling elements
*AC adapter
*Battery Pak #9017004
*4 collection containers and lids
*At least two sets of tubes
*Breastfeeding Information Guide
*PureLan™100 sample for sore nipples (new)
*Disposable bra pad Sample (new)

If you prefer ONE NEW set of tubes and accessories, I can do that as well for the same price.

Onwer Review
I personally own this pump and have found it to be well worth the investment! My let down is much faster and I yeild much more milk per pumping session. One thing Ive found very useful is to pump until the flow slows then stop. 10 minutes later Ill do this again which allows another let down. Im actually pumping 1/2 the time I used to.