All Ware 6550008 Vortex Portable Mixer, Garden, Lawn, Maintenance BPA Free; Stainless Steal and Acrylic; Pre-workout; Eggs. Cocktails; Juice; Baby formula; Energy dri The ultimate portable mixer The Vortex is powered by a 11,000 rpm motor that tears through the thickest powders with ease Your days of drinking clumpy protein and shaking cups up and down are over Requires 2 AAA batteries