Ulife-JOY Electric Coffee Cups Double Insulated Self Stirring Mugs 400ml Exquisite stainless steel + food grade PC double insulated design, safe and can keep your drink warm for a long time. Mute mixing impeller and sealed mug cover, no need to worry about liquid splashing. No spoon any more, simply press the STIR button and the hard work has been done for you. Perfect for home use, office, travel or great Thanksgiving Day gift for your friends or unique Women's Day souvenir for female?employees. Get maximum results with minimum effort!