13 MIXING MODES: The baby bottle shaker has three mixing modes to meet different needs. Automatic mixing can effectively reduce foam, and reduce gas, indigestion and other problems. 2LOW NOISE: The portable milk bottle shaker uses environmentally friendly ABS safety materials, and the sound during mixing is less than 40dB, which will not wake the baby. 3PORTABLE: The infant milk bottle shaker has a built in 1200mAh rechargeable battery, which can be used for 10 days after charging. Exquisite and compact, easy to carry. 4AUTOMATIC: The baby bottle mixer is an automatic mixer for infant milk powder and breast milk, which can make the mixing of infant milk powder more uniform, make the milk powder fully soluble in water, and save time and trouble in manual mixing. 5STRONG COMPATIBILITY: The automatic baby shaker can also mix other beverages, such as coffee, fruit drinks, tea, etc.