Hospitalgrade Suction The max suction value reaches to 338mmHg which ensures pretty decent output Note Please reach your Maximum Comfort Vaccum for more milk You can switch to a suitable suction level based on the usual breast milk output and pain tolerance Upgraded Mode Choice It has 4 modes and 9 suction levels and naturally mimics your little ones feeding The LED screen clearly displays the suction mode suction level and battery level The dualfrequency mode helps inverted and flat nipples to pump smoothly More Sizes for Most Moms The set includes flange inserts for sizes 19mm 21mm and 24mm The pump itself is 28mm Note Moms can find the appropriate flange size by the measure card in the package More Hidden Comfortable The wearable breast pump is unnoticed in the bra It is only 240g not bulky at all That gives moms allaround comfort Smaller Size Stronger Suction Safe Enough Made of BPAfree foodgrade silicone safe for both moms and babies The antibackflow design and sealing system prevents breast milk from leakage The capacity is up to 150ml5oz and the optimal collection volume is 120ml4oz One Charge for One Day The handsfree breast pump can be fully charged in 2 hours for 120 minutes 45 sessions usage 1100mAh battery USB charging Effortlessly Pump The electric breast pump is equipped with a memory function Even though there is no timer on the LED display the 30 mins timer shutdown function will be a great addition Warm Tips The product description shows many instructions about how to use the P10 breast pump correctly Once get past of the learning curve you will find P10 is fairly helpful for breast pumping