ML910 waterproof IPX8 31000 strokes/min battery powered sonic electric toothbrush

1. Shake Frequency: 31000 - 38000 strokes/min
2. Up to 27 days of brushing on single charge
3. Waterproof: IPX8
4. Working Mode: 20 modes (5 types * 4 degree). 5 Types Including: Daily cleaning frequency conversion massage / daily care / deep clean / gums care
5. Has memory function, can remember the mode user use
6. 2 minute timer with 30 seconds interval time
7. Has pressure induction function
8. Color: Customized