【Say goodbye to “clumps”】: Electric protein shake mixer with a powerful motor, rotating at 7000 rpm. double-sided printing (duplex): yes The super mixing feature ensures that all powders are mixed evenly and completely. You do not have to worry that the lumps in the drink will not dissolve. In addition, the practical handle is easy to carry. This allows you to carry, work and use the office without worrying about leaks. Thanks to the large capacity of 650ml, you can mix protein supplement, instant coffee, cocktails and other beverages. Embossed markings in ounces and milliliters make it easy to keep track of your shot. After a few seconds, rinse the bowl of the vortex shaker and it will be thoroughly cleaned. You can also give it to your mother/father/children/friends for birthdays, Christmas, Thanksgiving and more. parameter Product color: black Product capacity: 650ml Cup body material: ABS Engine voltage: 3 V Product Size: 121*90*196mm Battery capacity: 1200 mAh List of things to pack USB charging cable*1 Instruction manual*1