42,000 VPM High-Frequency Sonic Motor: Powerful 42,000 vibrations per minute removes plaque, stains, and calculus effectively for deep, thorough cleaning.6 Customizable Cleaning Modes: Choose from Beginner, Whitening, Clean, Massage, Polish, and Depth modes to suit all oral care needs.Smart 2-Min Timer with 30s Reminder: 2-minute auto shut-off and 30-second interval reminder help you brush evenly and avoid missing areas.IPX7 Waterproof & 60-Day Ultra-Long Battery: IPX7 waterproof for full rinsing; 4-hour fast charge supports up to 60 days of daily use, ideal for travel.Low-Noise Operation with 2 Brush Heads: Runs quietly under 50dB; includes 2 brush heads for long-term use, suitable for sensitive gums and daily routines.