Electric Double Breast-Pump Portable Ultra Low Noise Anti-Reflux Comfortable Pumping Breastfeeding Pump Features: Made of premium BPA-free material, safe for use. Bilateral design, promote the milk pumping speed. Frequency pumping, multiple sucking levels, each mother can adjust the levels according to her need. Soft silicone suction nozzle can imitate the real feeling of a sucking to pump efficiently without pain. Anti-reflux design makes a closed pump system to ensure freshness of milk, protecting the health of babies. Low noise working, provides a comfortable sleeping environment for the without disturbing other people. Can be flexibly assembled and disassembled, except for the electrical parts, all other removable parts are dishwasher safe. USB power supply, supports connect to the portable source, power adapter, notebook, ect. Specifications: Material: PC + silicone Color: transparent Power source: 110V-220V Rated frequency: 50Hz Bottle capacity: 300ml Package size: 200 * 200 * 95mm / 7.87 * 7.87 * 3.74in Package weight: 450g / 15.87ounces Note: 1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 2 * Breast-Pump Bottles 1 * Nipple 1 * Main Machine  1 * USB Cable 1 * Storage Bag