Say goodbye to plaque. Densely-packed, high-quality bristles remove up to 7x more plaque than a manual toothbrush. Whiter teeth, fast. The W2 Optimal White's stain-removal pad, made from densely-packed diamond-shaped bristles, removes surface stains caused by food and drinks. You'll notice a whiter smile, up to 100%*, in just 7 days. BrushSync™ mode-pairing feature**. The brush head syncs with your BrushSync™ enabled Philips Sonicare toothbrush handle**, selecting the optimal brushing mode and intensity level for exceptional whitening. All you need to do is start brushing. Brush heads become less effective after 3 months of use, but with BrushSync™ you'll be reminded before this happens. Your smart toothbrush will track how often and how hard you brush, and will notify you when it’s time for a replacement. Don’t have a smart Philips Sonicare toothbrush? Just monitor your blue replacement bristles, and when they turn white you’ll know it’s time for a fresh brush head. Brushing with peace of mind. All Philips Sonicare brush heads are safe and gentle on teeth and gums. During tests, each brush head is put through its paces to ensure durability and an exceptional performance every time you brush. Philips Sonicare technology. Your Sonicare brush head and handle are the ultimate team. Enhancing our sonic technology, they give you unrivalled cleaning. High-speed vibrations in your toothbrush handle power up to 31,000 brush strokes per minute that whip up your toothpaste into plaque fighting bubbles, driving them deep between your teeth and along the gum line for exceptional cleaning. This brush head fits perfectly with any Philips Sonicare toothbrush handle, except PowerUp Battery and Essence. Simply click on and off for easy replacement and cleaning.