Main Features:
– Ultrasonic toothbrush cleans teeth from 15000 to 31800 times per minute.
– Effectively cleaning dirt on the tooth surface and in the gap between the teeth.
– 3 brushing modes: clean white, soft, firm tooth to suit different conditions of teeth and gums.
– 2 minutes smart timer with interval pause reminding every 30 seconds to encourage dentist-recommended.

Parameter:
– Voltage: DC 3V
– Power: 1W
– Waterproof grade: IPX7
– Three modes: clean white, soft, firm tooth
– Battery: 2 x AA battery (not included)
– Frequency: 31800 times/min
– Working time: 90 days

How to use:
Gear memory function: the gear position is continuously switched within 5 seconds, followed by the first gear, the second gear, the third gear, and the power is turned off. Press the button for more than 5 seconds and press the power button again. Shut down after 5 seconds of operation, remember the last working mode.

Note:
When working, three lights are continuously flashing, indicating that the battery power will be exhausted, reminding the replacement of batteries.