USB Inductive Charging Station for AILORIA SHINE BRIGHT - Full charge in approximately 10 hours - Advanced charging logic for significantly increased battery runtime and lifespan - Overcharge and undercharge protection - Allows charging with any USB power adapter (e.g., from smartphones, laptops, etc.) - Simple and convenient operation through inductive charging. Compatible with all AILORIA SHINE BRIGHT sonic toothbrushes. The USB inductive charging station enables charging of the lithium battery with any USB power adapter (e.g., from smartphones, laptops, etc.) and its compact design makes it perfect for travel. The advanced charging logic ensures a significantly increased battery runtime and lifespan. After approximately 10 hours, the toothbrush is fully charged and provides 21 days of use with twice daily brushing. During charging, the toothbrush's LED lights up red. Once charging is complete, the light goes out. Instructions: Connect the USB cable to a USB power source. The inductive charger works automatically as soon as you place your toothbrush on the charging station. A full battery charge takes about 16 hours. Package includes - SHINE BRIGHT LE USB inductive charging station.