We are offering superior electric breast pump. Includes 2-phase expression technology that will mimic the feeding rhythms of your baby. In addition to being almost completely silent and ergonomically designed, this superior jay breast pump is really easy to switch between massage and suction phases. With 9 power levels you can find the perfect stimulation to help you express with minimal discomfort. An internal rechargeable battery makes the pump completely mobile or use with an included ac power cord.