Dm the Self-stirring Mug,assorted Color Made of stainless steel and plastic, Includes travel lid with drinking hole Features the words 'SELF STIRRING MUG' on the front Just press the button on the handle for instant mixing action! Press the button on the handle and cup will stir itself! Height: 4.4" /Diameter: 3.5" Power: 2 x AAA battery (not included)