How do I know which Oral-B electric toothbrush I have?
Oral-B iO iO Series 9 Electric Toothbrush with 4 Brush Heads White Alabaster | Walgreens
Amazon.com : Oral-B Pro-Health Clinical Battery Power Electric Toothbrush, 1 Count (Pack of 1) (Colors May Vary) : Battery Operated Toothbrushes : Health & Household
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12 best electric toothbrushes, according to dentists
How do I know which Oral-B electric toothbrush I have?