BEST TRAVEL COMPANION -- Our electric toothbrush comes with a travel storage case and a USB cable.^ High-Frequency Sonic Vibration: The brush head vibrates at 34,000 brush head movements per minute, quickly forming flow pulses to help clean teeth thoroughly.^ Strong Battery Life Without Frequent Charging: Once fully charged, the product can last for 7 to 15 days and can be used for a long time. You won't need to charge it often, which is also suitable for your business trips or travel.^ BEST TRAVEL COMPANION -- Our electric toothbrush comes with a travel storage case and a USB cable.^ The toothbrush's nano-coating provides a comfortable grip experience, IPX7 waterproof allows you to use it while showering, and the ultra-quiet design means less noise than other electric toothbrushes on the market.