This Oral-B ProfessionalCare 8500 has a visible pressure sensor which lights up if you are brushing too hard to help protect your gums. This electric toothbrush comes with 2 modes, daily clean and sensitive clean. Included with this Oral-B ProfessionalCare 8500 are 2 precision clean brush heads and 1 sensitive brush head. The 2 minute professional timer has a full/low charge indicator.