Can effectively prevent mastitis and alleviate breast pain issues caused by clogged ducts, engorgement, tenderness, etc. [9 Vibration Modes 3 Different Strength] Suitable for various needs of different mothers, always choose the most comfortable one; life waterproof, easy to wash clean by water, caring for mother' s health. [Premium Material] Made from high-quality silica gel, vary soft, friendly to mother' s sensitive skin, still feel comfortable even after long-time use; can be inserted into your bra, freeing your hands, convenient for use. [Built-in Battery] 300mAh large capacity battery, has long working time after fully charged, support convenient USB charging through computers, power bank, charger, and more. [Compact and Portable] Mini palm size, easy for neat storage and carrying it with you, relieve your pain at any time and anywhere. Specifications： Color: Pink Material: Silica gel Product Size: 9.1 4.1 2.5CM/ 3.62 1.65 1.02inch Product Weight: 38g/ 1.34oz Note： The charger, power bank, and computer showed in the picture are not included. Package List： 1 Lactation Massager 1 USB Cable.