STRONG BATTERY DURABILITY: This upgraded self-stirring coffee mug equip with a 400 mAh battery. High capacity batteries charge the electricity once can ensure use a long time. You dont need to charge while operating. When you want to make coffee, you only need to press the switch to quickly get a delicious coffee. WIRELESS SHAFTLESS MIXING: The upgraded self-mixing mug adopt shaftless magnetic stir and 7.4w rated power. It has a larger capacity and stronger power. At the same time, this automatic mixing cup uses a USB to charge and does not require batteries, which is more convenient and environmentally friendly. MULTIPLE USAGES: You can use this auto magnetic mug to stir coffee powder, hot cocoa, protein powder, chocolate, mocha. When you mix it with the spoon, the powder may be not completely fused, and need to clean the spoon. This self-stirring mug can fully mix water and powder which is very convenient and easy to clean. EASY TO CLEAN AND CARRY: Are you bothered about washing the cup after making your coffee is hot cocoa This automatic mixing cup uses detachable magnetic stirring inside and a stainless steel liner, which is very easy to clean makes you no longer worry about rinsing the cup. Meanwhile, the moderate size makes it easy to carry anywhere. CREATIVE PRESENT: It is a good choice to give this self-stirring coffee mug as a gift for anniversaries, birthdays, and holidays. It is very practical and very beautiful. It is an ideal gift.