The Wave Special’s 60° oscillations effortlessly emulate the dentist-recommended Modified Bass brushing technique for a superior clean. Its soothing 26,000 vibrations/min. are well-suited for all users, including beginners and those with sensitive teeth. The brush heads are coated in a soft food-grade TPE coating for a soothing brushing experience. The gum-friendly, ultra-fine bristles deeply clean teeth and gums, and are fitted using an advanced copper-free tufting process, securing them in place and preventing rusting. The handle’s seamless design keeps out dirt and grime, and the soft Matte PU coating makes it comfortable to hold while brushing. The perfect travel companion. Fully charges in just 3 hours through the USB-C cable, with a single charge lasting up to 50 days (**When used on the default Mode 1, twice a day, for two minutes each time) The Laifen App allows you to personalize your brushing across 1,000 possible brushing setting combinations, and guides you to a sparkling smile with the Smart Brushing Timer and Zone Change Reminder.