<p>Experience advanced oral care with the Philips Sonicare 2100 Series Rechargeable Electric Toothbrush HX3651/12. Designed for gentle yet powerful cleaning, this sonic toothbrush uses advanced sonic technology to help remove plaque effectively while maintaining gum comfort and oral hygiene.</p> <p>Powered by high-frequency sonic vibrations with up to 31,000 brush movements per minute, the toothbrush drives microbubbles deep between teeth and along the gum line for a refreshing clean. Clinically proven cleaning performance helps remove up to 3 times more plaque compared to a manual toothbrush.</p> <p>The built-in SmartTimer and QuadPacer help guide proper brushing duration and coverage for a complete 2-minute brushing routine. Its slim ergonomic handle provides comfortable everyday use, while the rechargeable lithium-ion battery delivers up to 14 days of usage on a single charge.</p> <p>Featuring a soft-bristle brush head and gentle brushing performance, the Sonicare 2100 Series is suitable for everyday oral care while helping maintain healthier teeth and gums.</p> <ul> <li>Advanced sonic cleaning technology</li> <li>Up to 31,000 brush movements per minute</li> <li>Removes up to 3x more plaque</li> <li>SmartTimer and QuadPacer guidance</li> <li>Rechargeable lithium-ion battery</li> <li>Up to 14 days battery life</li> <li>Soft bristle brush head</li> <li>Slim ergonomic lightweight design</li> </ul> <p><strong>Key Features</strong></p> <p><strong>Advanced Sonic Technology</strong><br> Powerful sonic vibrations help clean deeply between teeth and along the gum line.</p> <p><strong>Effective Plaque Removal</strong><br> Clinically proven to remove more plaque compared to manual brushing.</p> <p><strong>Smart Brushing Guidance</strong><br> SmartTimer and QuadPacer help ensure complete brushing coverage and timing.</p> <p><strong>Long Battery Life</strong><br> Rechargeable lithium-ion battery provides up to 14 days of cordless usage.</p> <p><strong>Comfortable Everyday Use</strong><br> Soft bristles and ergonomic design support gentle and convenient brushing performance.</p>