Advanced Water Pulse Technology with Adjustable Pressure: Designed with advanced water pulse technology, developed and refined by our R&D team through long-term research and real-user testing. Features 4 adjustable pressure settings with 1500–2000 high-pressure pulses per minute (50–150 PSI) to help target plaque buildup and food debris, delivering gentle yet thorough cleaning for daily oral care—ideal for sensitive gums.Rechargeable Cordless Design with Long-Lasting Battery: Provides up to 30 days of use on a single charge, making it ideal for daily oral care at home or for convenient travel.BPA-Free 300ML Water Tank for Safe Daily Use: Made with BPA-free materials, the 300ML large-capacity water tank supports a full cleaning session with fewer refills.Designed for Braces and Dental Appliances: Helps clean around braces, crowns, and other dental appliances, reaching areas that traditional floss may miss.IPX7 Waterproof for Bathroom and Shower Use: Built with IPX7 waterproof protection, safe to use and easy to rinse in the bathroom or shower for hassle-free daily flossing.Easy Charging & Maintenance (Adapter Not Included): Charges via standard 5V USB power. Adapter not included, but compatible with any existing 5V charger. For optimal hygiene and performance, replace the nozzle every 3 months.