The genuine Philips Sonicare UV Sanitizer helps kill bacteria and germs to disinfect brush heads at the push of a button. The UV light sanitizes up to 2 brush heads without chemicals as the reflector distributes light across the entire top of the brush heads. The Sanitizer automatically turns off after the 10 minute cycle is complete. Includes built-in toothbrush charger, compatible with all peggable Philips Sonicare toothbrushes (Series 1100 - 7500). UV Sanitizer fits all adult snap-on Philips Sonicare brush heads (not compatible with Kids or eSeries screw-on brush heads).