Highly efficient electric double pump breast pump: This electric breast pump features a double pump design that allows simultaneous expression from both breasts. The innovative technology mimics natural infant suction to enhance efficiency and reduce pumping time. With a convenient single-side mode, it offers flexible use for various needs. 4 modes and 9 speeds: The breast pump provides 4 modes including alternating massage, alternating suction, simultaneous massage, and simultaneous suction, each with 9 adjustable suction levels. An intelligent control system helps prevent overstimulation for a comfortable experience. The combination of massage and suction functions supports milk production and promotes breast health. (For best results, begin with massage mode and transition to suction mode.) Portable hands-free design: The compact pump fits discreetly inside the bra, allowing hands-free operation and direct wear on the breast. The soft 140 silicone flange conforms comfortably to the breast, minimizing slippage for secure and comfortable use. No assembly tools requiredmothers can focus on daily activities while pumping. Quiet and hygienic: Operates quietly at less than 35 decibels, making it suitable for nighttime use without disturbing others. The anti-reflux system helps prevent milk backflow, maintaining hygiene. All components are BPA-free, easy to clean, and simple to assemble. USB charging: Equipped with a 1800mAh rechargeable battery, providing enough power for 34 pumping sessions per charge. Features a USB Type-C port for convenient charging at home or on the move. Cordless charging supports mobility, making it ideal for working mothers and travelers.