Automatic Baby Formula Mixer, Electric Milk Shaker Low Noise, USB Charging, 3 Mixing Modes for Infant Feeding to Avoid Lumpy Reduce Bubbles 3 Mixing Modes: Baby automatic milk shaker has 3 mixing modes to meet different needs. Automatic mixing effectively reduces foam, which can prevent flatulence, indigestion and prevent babies' intestines. Low Noise: Portable feeding bottle shake machine is made of ABS safety material, and the sound when mixing is less than 40dB, so it won't wake up babies. Compatible: Automatic baby bottle shaker can also mix other beverages such as coffee, fruity drinks, tea, etc. It is compatible with bottles from 50 to 75mm in diameter. Spec: Item Type: Baby Milk Bottle Shaker Material: ABS Compatible: Compatible with 50 to 75mm/2.0 to 3.0in Diameter Bottles Battery Capacity: 1200mAh (Included) Charging Time: About 3H Working Time: 1 Minute in First Gear, 2 Minutes in Second Gear, 5 Minutes in Third Gear Product Size: Approx. 12x11x11cm / 4.7x4.3x4.3in How to Use: and use. Press and hold the switch for one second to start the machine. Add the appropriate amount of warm water and milk powder to the bottle, select the power button to start the machine and select the appropriate gear according to the dissolution level of different milk powder Package List: 1 x Baby Milk Bottle Shaker 1 x Charging Cable 1 x Instruction Manual Note: Manual measurement, please allow slight error.