The Philips Sonicare 3100 Electric Toothbrush delivers superior plaque removal, gentle yet effective cleaning and a built-in timer to guide brushing, helping you maintain healthier teeth and gums with every use. - Easy-Start program.- Gently increases power over the first 14 uses for easy adjustment. - Plaque removal.- Removes up to 3x more plaque than a manual toothbrush. - Dual intensity settings.- Choose gentle or powerful cleaning for personalised comfort. - Built-in pressure sensor.- Reduces vibrations and alerts you to protect gums and teeth.