The Momcozy S9 Pro is a wearable, hands-free electric breast pump designed for convenient and discreet milk expression. Its key features include a lightweight and compact design that fits comfortably inside a bra, allowing mothers to pump on the go. It typically offers multiple suction levels and modes to personalize the pumping experience. The S9 Pro is rechargeable and easy to clean. It's designed to be quieter than traditional pumps, making it suitable for use in public or at work. The 'Pro' likely indicates enhanced features or performance compared to standard S9 models, potentially including improved suction strength, battery life, or materials.