This self-stirring mug is simply what you need for travel. Just one push, it will simply stir the content smoothly by itself. Enjoy your morning coffee milk tea juice drink cocoa chocolate oats and while driving, without worry of spilling and making a mess. Powered by 2 AAA batteries with perfect stirring speed mechanism: not too slow and not too fast. The cup's lid has a hole allows you to use a straw to sip coffee and others. When the mixing function is turning on, keep the lid closed and the solid cover can reduce any spillage. Moreover, the high grade silicone seal will secure your mug tightly to preserve the heat and coldness of your drink about 3 hours.