● For the first time, please use a USB charger to fully charge the device, then the device will use its own solar panel to charge it ● Highly effective double work: integrated violet light emitting device and high frequency light source equipment, so that the cleanliness of the toothbrush reaches 99% ● Intelligent infrared digital induction: the violet light system can be activated by a more precise and purple induction. When the user approaches, the photocatalyst begins to stop produces violet light; when the user leaves, the purple light starts to work. This design can effectively avoid injury to the user caused by violet light. ● Charging by light energy: using the amorphous silicon solar panel thin with golden lines and 2000 high capacity lithium-ion battery my. It can be efficiently recharged by any light (including the indoor light and natural light), can work for more than three months after fully charged. ● Function of the toothpaste dispenser: built-in toothpaste adapter, the bag inflatable is made of food-grade silica gel that is environmentally friendly environment and safe. It is suitable for all toothpaste sizes, hole design attachment on the toothpaste squeezer can help the user to get the toothpaste easily and correctly.