Feature: 1. 9 Gears: Wearable breast pump with 3 working modes and 9 suction levels can be adjusted, with high frequency to stimulate mammary gland, promote milk flowing. 2. Good Suction: Electric breast pump with high frequency vibration and powerful suction, simulates the real milk drinking frequency of the baby to achieve rapid milk discharge. 3. Prevent Backflow: Wearable breast feeding pump adopted double channel anti backflow design, effectively preventing milk backup into the tubing, which is safe and clean. 4. Frequently Vibration: Hands free breast pump with large capacity lithium battery, and pneumatic pulse pump, generate high frequency vibration to provide comfortable massage for your breast. 5. PP Silicone ABS: Wearable electric breast pump made of high quality PP, silicone, and ABS material, soft and skin friendly, which is comfortable for mothers to use. Specification: Item Type: Wearable Breast Pump Material: PP, Silicone, ABS Size: Approx. 132 x 110mm / 5.2 x 4.33in Battery: Lithium Battery 1600mAh (Included). Package List: 1 x Breast Pump1 x Manual 1 x USB Cable1 x Plug1 x Storage Bag