The electric breast pump has 3 pumping modes and each mode has 9 suction levels to maximize pumping efficiency while mimicking the baby's natural sucking. Mother-friendly: This wearable breast pump is made of 100% food-grade silicone. It has a soft, comfortable shield and 4 sizes of flexible flanges for a custom-fit and better suction. This design also provides a secure seal to prevent any milk leakage. Portable Breast Pumps: This hands-free breast pump is super compact, so you can opt to store it in your glove compartment for emergency pumping sessions. After fully charged, this wireless breast pump can be used for about 2.5 hours /4-6 times. Low Noise Milk Pump: There is only a 45dB pump noise while using, similar to a parents' whisper, so it won't wake the baby up. The LED display is perfect for pumping in the dark or low light settings, so you can pump during the midnight hours without turning on the lights believes moms should be more relaxed, so we designed the breast pump to be lightweight, easy to assemble, and touch control buttons for easy operation. This wearable breast pump gives you loads of freedom. You can bring it in a purse to and from work, use a hands-free bra, and can roam around the house when you pump. Whether you're traveling, working, or just multitasking, this wearable breast pump is the perfect traveler lightweight, convenient, rechargeable, and made for today's busy mom. Closed system: The anti-backflow design prevents infection and keeps the milk fresh. It also means easier cleanup and better safety. Everything except for the device itself is washable and sterilizable. Product Feature: Food-grade silicone 4 flange sizes are interchangeable Enhanced soft shield, more comfortable and prevent milk leakage Weight: 8.7 oz Noise level: 45dB 1200mAh rechargeable battery Works for about 2.5 hours /4-6 times Upgraded LED display Approximately 2.5 hours to full charge. Max capacity: 180 ml Optimal capacity:120 ml