The Oral-B Pro 2500X rechargeable toothbrush provides a clinically proven superior clean vs. a regular manual toothbrush.*The visible pressure sensor turns red if you brush too hard to prevent harmful over-brushing and there are 3 brushing modes to help personalise your clean (Daily Clean, Sensitive, Whitening). There is also an in-handle timer to help you brush for a dentist-recommended 2 minutes.*Based on surveys of a representative worldwide sample of dentists carried out for P&G regularly.