Breast pump anti-back flow double breast pump Product Features ▲Cordless operation ▲New anti-back flow connector body to ensure milk's hygiene and pump's working ▲New soft petal-shape silicone breast shield which perfectly fit the shape of mom's breasts,can effectively prevent milk leakage ▲BPA free material: all materials in pump and accessories are BPA-free material. ▲Double solenoid valve design: mothers could choose double side pumping or single side pumping according to their needs. ▲9 levels suction power to breast pump ▲5 levels massage to stimulate the breast ▲Easy to operate and LED display ▲Super…