This portable Electric Protein Shake Stirrer is ideal for use at work, college dorms, hotels, camping, or while traveling. It effortlessly blends a variety of beverages including protein shakes, energy drinks, diet beverages, juices, cocktails, lemonade, and baby formula. Operating is straightforward: pour in your liquid, activate the motor to start the vortex, add your powder, and wait 30 seconds for a smooth mix. Cleaning is quick—simply add water and soap, run the motor to create suds, then rinse. The lightweight blender cup has a generous 450ml capacity and features durable materials including a 304 stainless steel bottleneck ring. It charges via Type-C USB and comes without a cable in battery models. Package includes one automatic blender cup.