“How many brush heads are included with the iO Series 4 toothbrush, and what are their unique features?”
This question was generated by AI based on customer and product data.
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The iO Series 4 toothbrush comes with one brush head. The unique feature of this brush head is that it has a round head and gentle micro-vibrations for maximum comfort while brushing.
This answer was generated by AI based on customer and product data.