【Skin-friendly liquid silicone, soft and comfortable】Made of skin-friendly liquid silicone, this breast pump is soft and comfortable, ensuring a gentle and comfortable experience for sensitive skin. It provides a 360° all-round fit for breasts of all sizes without displacement. 【Horizontal Button Technology Design】Featuring horizontal key technology, this breast pump is designed to prevent misoperation. The LED display allows for clear and easy reading at a glance. 【No milk Backflow】With its dual channel anti-backflow design, this breast pump ensures that gas and milk are completely separated. It prevents any milk from flowing back into the motor, avoiding contamination and spillage. 【Double Rhythm Breastfeeding Mode - A Core Concept】 This breast pump offers two stages of breastfeeding modes. In the stimulation mode, it provides quick and fast massage to stimulate milk secretion. In the sucking mode, it allows for slow and deep suction as the milk flows. [2 working-mode, 9 adjustable suction level Simulate baby sucking rhythm] With two working modes, this breast pump allows for massage followed by pumping, with freedom to adjust the settings. Its bionic design mimics the frequency of a baby's sucking, ensuring a comfortable and natural suction experience.