Moo Mixer - Push Button Chocolate Milk Mixer x 2 Mixer The 16 oz. Moo Mixer Supreme features an easy to use trigger button, fun to hold handle and large detachable clear tumbler. Battery operated (two AAs, not included) dishwasher safe clear tumbler and the totally cool mixing action that makes a whirling vortex of power to thoroughly dissolve chocolate powder mixes or syrups! Just add milk, chocolate and imagination! Perfect for mixing hot or cold drinks Includes spill resistant lid and cool cow styling!