The Oral-B Smart 1500 Power Rechargeable Electric Toothbrush provides a clinically proven superior clean vs. a regular manual toothbrush. The professionally inspired design of the CrossAction toothbrush head surrounds each tooth with bristles angled at 16 degrees and 100% better gum health vs. a regular manual toothbrush. The brushs 3D cleaning action oscillates, rotates, and pulsates to break up plaque. The pressure sensor lights up if you brush too hard to prevent harmful over-brushing. The brush has 1 mode, plus an in-handle timer to help you brush for a dentist-recommended 2 minutes. Best of all it is brought to you by Oral-B the #1 brand used by dentists worldwide. To maintain the maximum capacity of the rechargeable battery, unplug the charging unit and fully discharge the handle with regular use at least every 6 months