Twin electronic breast pump is a safe and effective powered breast pump for expressing and collecting breast milk from the breasts of a lactating woman. The pumping can be performed on one breast or two breasts simultaneously, from independent diaphragms. It operates in two modes. In the manual mode, the user controls the frequency and level of vacuum by varying the stroke/cycle of the control handle lever. In the automatic mode, the pumping cycle is stored and controlled by the microprocessor.