PROMiXX 2.0 &ndash; The World&rsquo;s Best Vortex Mixer / Blender / Shaker Bottle with X-blade Technology and Integrated Protein Storage Container. 16000rpm Lithium-ion battery. USB Rechargeable. 100% Leak-proof Guarantee. BPA-free. 600ml / 20oz PROMiXX: THE BEST. THE ORIGINAL. NO COMPROMISE! Creators of Vortex Mixing Technology, PROMiXX are the global leaders in the design and manufacture of premium vortex mixers. Designed in the UK, PROMiXX mixers represent the cutting edge of vortex mixing devices. THE WORLDS MOST POWERFUL VORTEX MIXER. USB RECHARGEABLE. The PROMiXX 2.0 is the worlds most powerful vortex mixer, capable of over 16,000RPM to effortlessly blend eventhe most stubborn of ingredients. PROMiXX vortex mixers have been independently tested and found to achieve superior mixing results compared to leading conventional shaker bottle brands. ELITE ATHLETE TRIED, TESTED AND APPROVED. Built with the discerning athlete in mind, PROMiXX mixers are the shaker bottle of choice by thousands elite athletes across the globe. Athlete-tested ergonomic design, rechargeable Li-Ion battery and integrated NUTRiPOD supplement storage maximize convenience, whilst the brushed aluminum finish provides superior durability and aesthetics. The scientifically-engineered blunt blade preserves micronutrients for improved protein performance. SUPERIOR QUALITY, IMPACT & ODOR-RESISTANT MATERIALS. Utilizing industry-leading food-grade materials, PROMiXX vortex mixers are both impact and odor-resistant whilst being BPA and DEHP-free. Super easy to clean  simply add water and a drop of detergent and activate the vortex. 100% LEAK-PROOF GUARANTEE AND 1-YEAR MANUFACTURERS WARRANTY. Plus, industry leading customer service on hand for your piece of mind.