This breast pump can simulate a baby's sucking in suction mode to stimulate milk secretion. The massage mode first massages and then aspirates to alleviate the problem of breast milk obstruction. The large 120 arc flange opening provides sufficient suction while being gentle and painless, making it suitable for most mothers. It has a digital display with a touch screen and is rechargeable via USB, stimulates and massages. Its operation is quiet, the motor noise is controlled below 60dB. Compact and easy to carry lightweight, portable and compact. Safe and comfortable made of BPA-free silicone for better breastfeeding experiences. During use, you don't have to worry about waking your sleeping baby or disturbing the work and rest of those around you.