Oral-B PC4000 Professional Care Rechargeable Toothbrush. The Oral-B 4000 is a rechargeable electric toothbrush that has both an oscillating and pulsating action, a timer mechanism and rechargeable base. The brush has 4 customized brushing modes and provides 40,000 pulsations and 8,800 oscillations per minute. The Oral-B 4000 comes with multiple attachment brush heads with compact, round design and Indicator® bristles that reminds you to replace your brush head every 3 months, once theyve faded halfway. It also features a pressure sensor that stops pulsation to notify you when youre brushing too hard.
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