Warrenty Serviece: We friendly provide worry-free pre-sales and after-sales service to you. We reply issue during 24 hours and provide satisfied solution in time. IPX 7 Waterproof: IPX7 waterproof can effectively prevent the rechargeable electric toothbrush from damage of water whether you are in the shower or washing it. 2 Min Smart Timer: Teach you to brush every tooth with the built-in timer! The brush will beeds every 30 seconds to remind you to switch the sonic toothbrush to different parts of their mouth. Cover every quadrant and get into every gap and helps you brush for the 2-minute, dentist-recommended time. Wide Compatibility USB Charging - This USB cable compatible with USB adapters with a voltage lower than 6.3V. No need to spend extra money on specific adapters. Flexible DuPont Bristles - 3D dupont bristles is cleaned deeply between teeth. The top of bristle is rounded to care for sensitive gums. It is recommend to replace brush head every 3 months of sonic toothbrush. 5 Modes for Personalize Your Clean Need: Our adult electric toothbrush features 5 brushing modes — Clean, White, Sensitive, Massage, and Polish — to your unique oral care needs. Cleaning Mode is first choice for daily dental care. For the first time use, it is recommended to start with sensitive mode of sonic toothbrush. 120 Days Use & Travel Convenience:It is fully charged in 3 hours, this rechargeable toothbrush can last up to an incredible 120 days, making it convenient for home and travel use. 2 Whole Years Of Peace Of Mind: Rechargeable toothbrush is more durable than similar electric toothbrushes on the market with 8 soft, and flexible Dupont Brush Heads that will last for a full 24 months. Superior Cleaning Power: Our electric toothbrush delivers an impressive 40,000 high-frequency vibrations per minute, providing a deep and thorough clean that is 3 times more effective than low-frequency electric toothbrushes for adults. Say goodbye to 99.99% of plaque and surface stains for a healthier, brighter smile.