41,000 VPM Smart Toothbrush T2402T is a world class modern electric toothbrush packed with the most up to date technology. It features an ultra-powerful and industry leading motor producing 41,000 vibrations per minute , lithium-ion battery, ultra-fast wireless charging, 4 modes operation, smart vibration timers, DuPont engineered brush heads and bristles; all with a sleek ultra-slim, lightweight and IPX7 rated waterproof design. DuPont Brush Heads - Every T2402T toothbrush head comes with end-rounded DuPont bristles, Tynex diamond bristles and Tynex fading bristles. Tynex blue color fading bristles become light blue in 3 months to remind user to change brush head. Modern Tech for a Healthy Smile - T2402T brings toothbrushes into modern times with its built in enhanced features. A lithium-ion battery, ultra-fast wireless charging (forget outdated USB charging), 4 distinct brushing modes and a smart vibrating notification timer are some of the enhanced features built in to the sleek and ergonomic waterproof black satin handle