Feature: 1. LOW NOISE: Food grade, safe, low noise material. The electric breast pump accessories are made of food grade soft silicone to ensure the safety of the baby and mother. When used, the sound is less than 60 decibels, which will not affect the baby sleep. 2. MODE: Double frequency mode, fast and slow frequency, to prevent milk reflux, petal silicone massage breast suction which is comfortable suction, effectively prevent respiratory milk reflux, increase the sealing edge of the container. 3. GEARS: Gear 1 to 4 is used to stimulate lactation, and gear 5 to 9 is automatically switched to normal lactation every 45 seconds. You can increase or decrease the suction by adjusting the suction boost button and the suction decrease button according to your comfort level, the higher the gear, the greater the suction. 4. WORK CONDOTION: Studies show that pumping at maximum comfort pressure is more effective, which means getting more milk in relatively less time. Working time 30min will automatically shut down, breast pump host should work at room temperature. 5. DETACHABLE: All parts of the breast pump are removable, easy to clean and assemble, saving time. Accessories and breast pumps can also be used with other breast pumps. Specification: Item Type: Single Electric Breast Pump Material: PP, silicone, electronic components Battery: Lithium battery, 1800mah (shipped with built in battery) Baby bottle capacity: 150ml. Package List: 1 x Host1 x Breast Pump Bottle2 x Horn Cover2 x Silicone Horn Cover1 x Baby Bottle Cover1 x Feeding Bottle Valve1 x Charging Cable1 x Unilateral Catheter