1.1. Electric Protein Shaker Bottle Makes Your Drinks Smooth: Unlike other electric shaker bottle, ours run very quietly, without loud noise. The powerful motor makes the blade spin at up to 6500 rpm, fully and quickly blending protein powder and water with no lumps for a smooth taste, so you can easily access to energy and nutrition intake than manual. 2.2. Easy to Clean and Food Grade Material : Free your hands. Just add detergent and water, turn the shaker on, and let it clean itself.The electric shaker cup makes of food grade material, which is entirely to infant grade regulations and shatters resistant. No BPA. Use as you please! 3.3. 2 AAA Battery(Battery included): Shaker bottles -Our mixing cup is powered by 2 AAA batteries,Small size big power, speed can be up to 7000 RPM, Stirring does not produce large noise and vibration. Battery automatic stirring cup, no need to plug in, no location restrictions, no power can be easily stirred outdoors. 4.4. Blender Shaker Bottle: Intimate portable handle design, tough not easy to break, easy to carry. It is the perfect companion for school, travel, fitness, camping, business trips, going out, working, dating, climbing. 5.5.Unique Design for Perfect gift: Stylish animal-ear accents add a fun touch to your shaker bottle. Good-looking and practical. Widely used: can be used in soymilk, milk powder, cereal, coffee, protein powder... All powder food. 6.6. :Pro Shaker Bottle 21oz , Powerful for Smooth Protein Shakes - includes Supplement Storage - BPA Free. 7.7.Button design: button waterproof design, one button, easy to start, easy to operate. Double seal: high quality rubber rings are installed between the lid and the bottle to eliminate the potential leakage.