Patent ID: 11937688
Assignee: SMART CHIP MICROELECTRONIC CO. LIMITED
Field: Medical technology (Instruments)
Classification: CPC A  G  H | IPC A  G  H

Claim 12:
13. The toothbrush according to claim 11, wherein the audible signals comprise a plurality of signal frequency components, and wherein the signal frequency components have signal frequencies of at or below 2 kHz, including 100 Hz, 200 Hz, 300 Hz, 400 Hz, 500 Hz, 600 Hz or above, and 2 kHz, 1.8 kHz, 1.6 kHz, 1.4 kHz, 1.2 kHz, 1 kHz or below, or a range or ranges formed by a combination of any of the aforesaid values.