3 Mixing Modes: The automatic milkshake has 3 mixing modes to meet different requirements. Automatic blending effectively reduces foam, thereby preventing your baby's inflammation, digestive disorders and inflammation. Compatibility: The automatic bottle shaker can also mix other drinks, such as coffee, fruity drinks, tea, etc. It is compatible with bottles with a diameter of 50 to 75 mm. Low Noise: The portable bottle shaker machine is made of environmentally friendly ABS* material and makes less than 40 dB of noise when mixing, so the baby will not wake up. Portable: The food mixer has a built-in 1200mAh battery, which can work for up to 10 days after charging. Exquisite and compact, easy to carry. Automatic: The bottle shaker is an automatic mixer for baby food and formula, which can mix the food evenly and completely dissolve the formula in water, while saving the time and energy of manual mixing.