Superior and Durable Material The electric stir cup is made of food grade stainless steel liner with no hole for no leakage and bright surface which owns advantage of wear resistance, high heat resistance and durability. Thoughtful and Humanized Design This is not only a cup but also your best helper. In order to offer the most thoughtful and humanized service for you, it is simply controlled by one button that controls on and off. Besides, it offers a lid with two holes for heat dissipation and sucker so you will feel comfortable and enjoyable while drinking. Electric Driving This is not only a cup but also a smart device. It adopts strong magnetization device which gives you a uniform stir with suitable power for protect liquid from being leak. No Plug Needed and Double Insulated Meticulous details ensure perfect quality. The cup won’t need you to charge it by USB cable. 2pcs AAA batteries are enough for it to accompany with you for a long time (batteries are not included). Besides, it provides double insulated cover and humanized handle so that you won’t be hurt by high heat.