One pump has both electronic and manual pumping options MAM 2in1 Single Breast Pump is a breast pump with both electronic and manual pumping options in one pump. Electronic and manual breast pump in the same package! The Ainu MAM 2in1 Single Breast Pump has pleasant 2-stage pumping that mimic baby's natural sucking rhythm and facilitates milk expression. In the electronic pump, pumping starts with the stimulation phase and only when the milk starts to flow, starts the actual pumping. When using a manual breast pump, we recommend that you pump with a slightly faster rhythm at the beginning of pumping, and when the milk starts to flow, you switch to a calmer rhythm. The breast pump's battery must be charged, i.e. no batteries are needed, up to 3 hours of pumping with one charge, the pump can also be used while the pump unit is charging. Could it be easier, just by swapping the pump units with each other, mom can switch from an electronic pump to a manual pump, this only takes a couple of seconds. Pumping can continue even if the battery runs out of power and there is no time or opportunity to recharge it. No changing batteries and remembering to buy new ones. The modern electronic 2in1 breast pump has 9 different powers and a timer that shows the duration of pumping. If the milk is to be given to the baby immediately, the milk can be pumped directly into the MAM Easy Start baby bottle, or if the milk is to be frozen, it can be pumped directly into the MAM Storage solution. All MAM products are BPA/BPS free.