Portable electric shaker bottle is made of food-grade AS and stainless steel material, BPA-free, eco-friendly and has nice durability. The bottle is transparent with scale, easy to grasp the capacity. One-piece molding mixing blade, wear and high temperature resistant, powerful motor to help you quickly and evenly stir your favorite drinks. Built-in rechargeable battery, convenient to carry and use, perfect for outdoor camping, hiking, climbing, fitness, school, office, etc. Features: Made of food-grade AS and stainless steel, BPA-free, eco-friendly and odorless, resistant to high and low temperatures, not easy to break. Powerful motor for quick and even mixing, can be used for protein powder, coffee, hot chocolate, soy milk, cereal, milk, etc. 450ml/600ml large capacity design, transparent cup with clear scale line, easy to grasp the capacity. Built-in 800mAh rechargeable battery, long endurance, get rid of the cable, convenient to use on the go or travel. One-piece molding mixing blade, wear and high temperature resistant. Flip lid direct drinking port design, convenient and with nice sealing. Specifications: Color: Sliver-Grey Material: Food-Grade AS + Stainless Steel Capacity: 450ml / 600ml(optional) Battery: Built-in 800mAh Lithium Battery Item Size: 450ml: 205 * 85 * 85mm/ 8.1 * 3.3 * 3.3in 600ml: 235 * 85 * 85mm/ 9.3 * 3.3 * 3.3in Package Size: 450ml: 220 * 90 * 90mm/ 8.7 * 3.5 * 3.5in 600ml: 240 * 90 * 90mm/ 9.4 * 3.5 * 3.5in Package Weight: 450ml: 360g/ 12.7oz 600ml: 398g/ 14.0oz Packing List: 1 * Shaker Bottle 1 * USB Cable