【3 Modes & 9 Suction Levels】 The wearable breast pump has 3 working modes(Massage Mode/ Express Mode/ Massage ' Express Mixed Mode), and each mode has 9 adjustable suction levels. With LED screen to display mode and suction level information, simple to operate. 【Anti-Backflow & No Leakage】 With anti-backflow design and a seal system, the wearable breast pump can prevent the breast milk from being contaminated and leakage. With a 150ml milk collector for convenient breastmilk storage. 【No Pain & More Efficient】 Made of PP & soft silicone material, which will not cause pain and maintain a good seal during usage. 110° wide angle design, wrap and stimulate wider breast range to improve pumping efficient. 【Built-in Battery & Low Noise Working】 Built in 1200mAh large capacity battery, long working time and can be charged by USB cable quickly. The sound of the wearable breast pump is very low during working, which will not disturb your sleeping baby. Specifications: Color: White Material: PP ' Silicone ' ABS Battery Capacity: 3.7V 1200mAh Charging: 5V/1A Type-C Charging Time: about 2H Working Time: about 2.5H Power: 5w Auto Power Off: 30min Milk Collector Capacity: 150ml Breast Cover Diameter: 24mm Item Weight: 280g/ 9.9oz Packing List: 1 * Breast Pump 1 * USB Cable