
1) Dental equipment 2) Electronics company 3) Personal care brand
Found on
https://www.crosswordclues.com/clue/sonicare

Sonicare is the brand name of an electric toothbrush produced by Philips. ==Product and technology== The brush head vibrates at hundreds of times per second, with the latest models at 31,000 strokes per minute. Rather than connecting to its charger with conductors, it utilizes inductive charging—the charger includes the primary winding of the vo...
Found on
http://en.wikipedia.org/wiki/Sonicare

electric toothbrush. Vibrates at over 31,000 brush strokes per minute. Most models offer a 3 - minute timer to let you know when you?re done.
Found on
http://www.cosmeticdentistryguide.co.uk/glossary.html
No exact match found.