Specifications: Material: PP, ABS, Silicone Suction Intensity: 60mmhg~280mmh Capacity: 180ml Power supply: lithium battery, USB charging Charging time: 2.5 hours Usage time: 1.5-2 hours Power: 3W Rated Voltage: 5V Battery Capacity: 1200mAh Features: -High quality material and fine craftsmanship, durable for a long time of use. -With this breast pump set, you will enjoy painless breast pumping. -A wonderful gift for your friends who are a new mom, and they will love it. -Nine intensity adjustment levels, you can choose according to your needs. -The soft horn cover will not hurt your delicate breasts. -Low power, low vibration, low noise, good operation. -Small and light, easy to store and transport while leaving.