ICE is a new electric toothbrush design which the wireless charging technology has been applied to. It means that ICE could increasingly reduce the power consumption and the charging efficiency is 6 times than the traditional one. In this case, once the users charge ICE, it will last for approximately four months which means that users need to charge ICE just three times per year. The handle of ICE is made by metal which makes it much more stable and comfortable. And the noise of vibration has been reduced to a minimum. ICE is the first all-metal electric toothbrush in the world.