The Oral B Pro 3 3500 Electric Toothbrush removes more plaque than a standard manual toothbrush, making healthier gums and whiter teeth easy to achieve.The integrated timer reminds you to switch areas every 30 seconds. 360° gum pressure control ensures your gums stay healthy - when the sensor detects you're brushing too hard, the band around the handle turns red and brush speed slows down automatically. And as the Pro 3 3500 removes surface stains, your smile will get visibly whiter, too, starting right on the first day of brushing.The Pro 3 3500's battery lasts for up to 14 days on a single charge, so just pop it in the travel case and take it on the road with no worry.