Experience Oral-B Pro 2 from the number 1 brand recommended by dentists worldwide. The sleek handle of the 2500 electric toothbrush helps you brush like your dentist recommends: It helps you brush for 2 minutes with the professional timer and it notifies you every 30 seconds to change the area your are brushing. While you are just moving the brush around your mouth, Oral-B's distinct round head does all the rest. It removes up to 100 percent more plaque than a standard manual toothbrush for healthier gums and it starts making your smile whiter as of the first day of brushing by removing surface stains. Not only this, but the toothbrush helps you protect your delicate gums with the proprietary pressure control technology that reduces brushing speed and alerts you to be gentler if you brush too hard. With the Pressure Sensor Oral-B Pro 2, 2500 toothbrush, is the must have brush for everyone who wants to switch to an electric toothbrush and improve their oral health. No wonder Oral-B is the number 1 recommended brand by dentists worldwide. Oral-B Pro 2, 2500 electric rechargeable toothbrush is compatible with the following replacement toothbrush heads: Cross Action, 3D White, Sensi Ultrathin, Sensitive Clean, Precision Clean, Floss Action, Tri Zone, Dual Clean, Power Tip and Ortho Care. Why won't my Oral-B electric toothbrush hold a charge? Depending on which model you have, your Oral-B electric toothbrush should take between 14 and 22 hours to fully charge the brush, and should last for between 5 and 12 days of brushes (when brushing twice a day, for 2 minutes each time). If your brush is not charging or lasting this long there are a few tips you can try. First thing to do is check that the power outlet you are using is working as it should. If it’s attached to a bathroom cabinet, for example, the light switch on the cabinet may need to be switched on to power the socket. Make sure you are not charging the toothbrush on a metal surface. The metal can interfere with the charging process. With our Vitality, Kids toothbrushes & PRO 500 toothbrushes (labelled ‘Type: 3709’ on the underside of the toothbrush), it can sometimes be difficult to know when they’re correctly switched off. If they’re switched on while charging, they won’t charge correctly. The best thing to do is to put it on the charger for24 hours or so, and then try to switch it on. If it switches on that’s great, and it was correctly switched off while charging. However if it doesn’t switch on, that might mean that it wasn’t switched off during charging. Be sure you’re charging for the full time noted in the manual. For our Vitality and PRO 500 toothbrushes, that’s 16 hours. For the Genius range (labelled ‘Type: 3765’ on the underside of the handle), that’s 14 hours. For all other toothbrushes, they should be charged for 22 hours. All our toothbrushes apart from the Vitality and PRO 500 have a charging light. It should blink green during charging. Note that this can take up to 15 minutes to start happening if the toothbrush was entirely drained of battery during brushing. When charging is complete, the blinking should stop.