- New linear motor improves speed by 9% to approx. 31,000 brush strokes per minute; - Precise linear oscillations for powerful plaque removal; - Horizontal movement as recommended by dentists cleans targeted areas while remaining kind to gums; - Stain-Off brush with precision, diamond-shaped bristles helps prevent tooth stains with daily brushing; - Reverse surface features tongue brush for gentle cleaning of the tongue surface; - Small linear motor makes overall length approx. 25 mm more compact and weight approx. 30 g lighter for clean appearance and ease of use.