A portable double electric breast pump is an electronic device designed for mothers to express milk from both breasts simultaneously.They typically feature a control unit with a digital display that shows the pumping mode, suction level, and timer for easy monitoring. The ability to pump from both breasts at once can save time for busy mothers and may help increase milk supply. 4 Modes (Promote lactation, Massage, Breast pumping,Free pumping) and 9 levels of suction for each mode, which can be adjusted according to your preferences, imitate the baby's actual sucking frequency and help to suck quickly, easy and painlessly. It can easily help you find the right suction power to get more milk in a shorter period of time, giving mothers more choices and easy.