ShredTech X: USB Rechargeable High Power Electric Protein Mixer - Portable Electric Vortex Mixer and Shaker Bottle with Supplement Storage LARGEST CAPACITY: The ShredTech X has the highest capacity of all competitors. 600ML / 20oz for larger shakes. RECHARGEABLE: One charge will last 2 weeks if you use it every day! USB cable included. POWERFUL: 16,000 RPM Motor speed. The strongest portable shake mixer available FAST CLEANING: This self mixing cup can be cleaned in a matter of seconds! Just add water and soap then turn on the motor. Allow the mixer to create a vortex of suds, then rinse it and it's good to go. BEST FOR POWDER: This Shaker bottle can mix all your powder shakes. Works great with pre-workout, creatine, protein, and any other powdery substance. Built in rechargeable battery Lasts 1-2 months per charge 2 hours for a full charge USB charger included LED charging indicator on cord Just add water to about 300ML/10OZ line mark Turn bottle on by pressing motor button Add a dollop of soap Close lid tightly Wait for bottle to clean itself Turn motor off, pour out dirty water and rinse Built in powder storage container Powder stays dry until poured 6oz of powder storage available detachable for convenience 16,000 RPM power No unmixed powder clumps esured Removes settledunmixedpowder Powerful to mix any powdered drink Protein Creatine Pre workout Bullet proof coffee Eggs Cooking powders