The Fit & Fresh Portable Power Mixer instantly mixes all powdered drinks on the go. Use for Mixing: Protein drinks; Salad dressings; Flavored drinks; Healthy dips; Instant formulas. Great for light mixing in the kitchen or on the go. The Fit & Fresh Power Mixer is the perfect way to handle light mixing in the kitchen or on the go. Use your Fit & Fresh Power Mixer for powdered drinks, yogurt drinks or infant formulas. The Fit & Fresh Portable Power Mixer is ready when you are. When used to mix drinks, no need to dirty another glass, drink straight from the convenient 20 oz cup. Battery powered to go wherever you go. The power mixer uses 4 AA batteries (not included).