Features:    1. Large capacity lithium battery    2. Multiple power supply    3. Multi-speed adjustable    4. Milk backflow prevention    5. Wearable design    6. Safe material         Health Tips:    1. Wash your hands before pumping or handling breast milk.    2. Warm up the breast pump with a hot towel before expressing. Massage stimulates the areola, making the breasts completely transparent.    3. Express milk under your own pressure. The breast or nipple should stop expressing when feeling pains.    4. Simply squeeze eight points into the milk (no more than 20 minutes)    5. Storing breast milk in containers    6. Take out breast milk that has been refrigerated for more than 72 hours (3 days)    7. Do not put refrigerated breast milk or fresh breast milk.    8. Thaw refrigerated breast milk or connect the container to warm milk for warm feeding.    9. After the breast milk is thawed, if the baby cannot drink it after 24 hours, do not refrigerate the breast milk again. Discard the rest and clean the container.           Specification:    Material: PP + Silicone    Capacity: 180ml    Battery capacity: 800mAh    Power supply: 220V    Frequency: 50HZ    Size: about 15.1x8cm/5.94x3.15in    Power supply: USB charging           Packing List:    Silicone nipple*1    Tee*1    Silicone diaphragm*1    Breast pump host*1    USB charging cord*1    Bra*1    Duckbill valve*1    Bra adjustment button*1           Note:    1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.    2. Due to manual measurement, there is a tolerance in the product size.