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IPX6 Professioneller Ultraschall-Elektrischer Zahnreiniger für den Haushalt, Entfernung von Zahnbelag, Mundpflege, Zahnreinigungsinstrument
IPX6 Professioneller Ultraschall-Elektrischer Zahnreiniger für den Haushalt, Entfernung von Zahnbelag, Mundpflege, Zahnreinigungsinstrument
US$18.39 US$25.96

Q: Hi, 22 KhZ is not ultrasonic!!!

gefragt von BG521722533 auf 2024-01-30 00:42:01

ququci A vibration of 22KHz is ultrasound frequency! ( kHz = vibration per second) But this toothbrush vibrates at a frequency of 22000 per minute = 22000:60 sec = 367 per sec. So the frequency is 367 Hz or ... Mehr zeigen

2024-01-30 01:01:43 Hilfreich (4)
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