The Vevor electric breast pump is designed for comfortable and efficient milk expression with reciprocating piston pump technology and strong suction up to 300 mmHg. It offers single or double pumping with independent left and right control to better match different comfort and milk flow needs. With 4 modes and 9/15 adjustable levels, it supports a more personalized pumping experience. A 4000mAh rechargeable battery and LED display help make pumping more convenient at home or on the go.