Comfortable Breast Pumps: Imitating the principle of baby sucking, it has 2 modes and 9 adjustable levels to stimulate and increase milk secretion, ensuring that every mother can find her own rhythm to secrete milk comfortably and effectively. No Leak & Excellent Sealing: Combining the anti-backflow valve and ergonomic design, with a tightly sealed structure to obtain better suction, more effectively prevent breast milk leakage. 21/24mm Flanges--Suitable for most nipple sizes. No Pain & Portable Breast Pump: Food-grade BPA-free silicone, skin-friendly. The soft silicone breast horn shield naturally fits most mothers breast shapes, reducing the mother's discomfort during pumping. Comes with a USB cable for easy charging. Wearable & Hands-Free Breast Pump: Using an electronic breast pump can help maintain mothers milk supply. The wearable design frees mother's hands, allowing mothers to work or rest during breastfeeding. With milk bags to save breast milk. Ultra-Quiet & Cleanable: Innovative air extraction technology, the sound is less than 40 dB when used, and will not disturb a sleeping baby. 1000 mAh battery for longer time use. Silicone parts can be sterilized in boiling water or steam.