A fully charge last for 6 weeks of regular brushing. There is no risk of overcharging the battery.
Features and Specification:
1. 31,000 - 48,000 brush strokes per minute
2. Three brushing modes(Normal, Soft & Massage)
3. Smart timer: 2 minutes auto-timer ensures dentist recommended brushing
4. 30 seconds interval time helps you brush each area of your mouth
5. Inductive charging technology, worldwide voltage (100-240V), Waterproof IPX7
6. Energy-saving, full charge lasts for up to 6 weeks
7. Product size: 80 x 83 x 273mm
8. Material: ABS, DuPont bristle
9. Multicolor: white, black, silver, blue and pink
