Boorui BR-X7 Smart USB Electric Adults Toothbrush Gradient Oral Hygiene Ultrasonic Toothbrush 1. Magnetic levitation sonic motor, DuPont bristles, IPX7 and waterproof, over force protection system 2. 5-speed mode, intelligent whitening and cleaning, to take care of different oral needs 3. Cleaning mode to meet the needs of morning and evening oral cleaning 4. Brightening mode for fast stain removal and teeth brightening 5. Polishing mode to reduce plaque generation from stains 6. Massage mode, gum care 7. Soft mode, suitable for first time use and gum sensitivity 8. Timing reminder 2 minutes smart timer, 30 seconds smart reminder 9. Dupont antibacterial bristles, soft brush head, gentle care, sensitive gums 10. square profile, special skin-friendly glossy lacquer, comfortable grip, ergonomic 11. High-frequency vibration magnetic levitation sonic motor, powerful, stable oscillation, deep cleaning, effective plaque removal 12. IPX7 waterproof design, washable all over 13. Magnetic levitation oral cleaning system 14. Noise level: 46-70db 15. Battery capacity: 500mAH 16. Charging time: 4 hours 17. Life time: 30 days 18. Speed: 16500 rpm 19. Charging voltage: 5V 300mA