Electric Protein Shaker Cup w/ Detachable Electric Motor Mixer - 450ml - Hygienic & BPA Free This Portable Mixer is powered by 9000rpm motor. It tears through the thickest powders with ease.Your days of drinking clumpy protein and shaking cups up and down are over. Portable, Durable, Stainless Steel and Acrylic. The Portable mixer is BPA Free and ECO-Friendly Not just a powerful blender but, a 450ml/16oz drinks and water bottle. Move towards the recommended 75 to 150 ounces of water per day. Great for athletes pre and post workout nutrition. Mixing instantly increases nutrient absorption Great mixer for energy drink powders, cocktails & juices, baby formula, eggs and more