Amazon.com : Oral-B GENIUS X Electric Toothbrush with 3 Replacement Brush Heads and Case, White (Packaging May Vary) : Health & Household
Amazon.com: Oral-B Genius X Limited, Electric Toothbrush with Artificial Intelligence, Rechargeable Toothbrush (1) Replacement Brush Head, Travel Case, White
Oral B Genius 9000 replace battery start to finish - YouTube