The Power to Smile Like a Princess. The Oral-B Kid’s Battery Powered Toothbrush is the perfect battery powered toothbrush for your own little princess. At this stage of their evolving oral health kids will lose some baby teeth as their permanent teeth start to grow. This toothbrush is an advanced children’s toothbrush with the added benefits of battery power to help them get the most out of their brushing routine. Best of all this battery powered toothbrush is compatible with the interactive Disney MagicTimer App by Oral-B to help your kids brush for a dentist-recommended 2 minutes.