With 40,000 vibrations per minute, 8 brush heads, wireless charging, and ADA approval, the Black Series turns oral care into science! Four modes, including whitening and gum care, an intelligent timer, and an ergonomic IPX7 waterproof design make it perfect for home or travel. It runs up to 4 weeks on a single charge, while the travel case ensures hygienic storage for the brush heads. DuPont bristles guarantee premium quality—so you can simply enjoy a radiant smile