There are 18 different pumping settings—from low to high—to suit your needs. The edges feature 5 soft massaging petals for a comfortable fit and enhanced milk production. It operates in two stages—massage to stimulate milk flow, followed by rhythmic pumping for rapid expression. The breast pump is silent and compact, making it portable and easy to use anywhere. It is made of high-quality, food-grade polypropylene, BPA-free, and durable; it is rechargeable with an easy-to-access USB port.