Rechargeable Ultrasonic Soft Bristle Electrical Toothbrushes Flosser 6 Gear With 4 Brushes 1. Power supply mode: USB charging 2. Battery capacity: 600mAh 3. Rated voltage: DC 5V 4. Rated power: 1.5W 5. Waterproof grade: IPX-7 6. Operating mode: 2 minutes timer 7. Endurance: about 60 days 8. Vibration frequency: 32000-42000 times minute 9. Weight: about 90 g 10. Size: about 22 x 2.5 cm 11. Packing list: host x1, brush x4, USB charging cable x1 Features: 1. IPX7 waterproof, 42,000 vibrationsminute frequency, 6mm vibration sound wave, selected materials for the bristles to ensure safe and harmless inlet 2. Three major teeth cleaning technology, comprehensive protection of dental health, 42000 times high-frequency vibration plus 6MM large pendulum angle, to give you a full range of teeth cleaning experience 3. 6 kinds of teeth cleaning mode 6 kinds of customization, enjoy the freedom of intelligent switching 4. Scientific brushing will be divided into four areas of the oral cavity, balanced cleaning of the oral cavity, the motor stops vibrating 1.55 times per 30s, there is enough time to replace the brush area, to ensure that the oral cavity cleaning without dead ends 5. Long-lasting battery life, 2 minutes each morning and evening, fully charged can last for about 60 days