Amazon has the Colgate hum Smart Toothbrush Starter Kit (Blue or Teal) for $15 with free shipping on $25+ or with Prime. Powered by 2 AAA batteries (included). "Guided" toothbrush tracks the frequency, duration, and coverage of your individual brushing style to help you target spots that need extra attention.
$15 retail: $44Report
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Colgate hum Smart Rechargeable Toothbrush Starter Kit at Woot!
$18 retail $40