[3 Switchable Vibration Intensity Levels - Press and hold the mode button of electric toothbrush for 3s to switch between vibration intensity. For those with sensitive teeth or gums the low vibration intensity can help reduce discomfort while brushing. Individuals with good oral health can opt for the medium vibration intensity to achieve effective oral care. Those aiming for a deep cleaning experience can choose the high vibration intensity mode providing a better level of oral hygiene Experience a Deep Clean with Dual-sided Vibrations - Our toothbrush heads utilize ultrasonic technology to generate high vibrations at 40000 times per minute. This sonic power combined with the gentle oscillation of the bristles ensures a thorough and comfortable deep cleaning of your teeth. Plus with an additional deep cleaning brush head included you can enjoy a unique vibrating cleaning method for even more effective oral cleaning. Discover a whole new level of brushing experience Once Charge for 90 Days of Use - Simply put the sonic toothbrush into the charger stand to begin charging. A 10-hour charge provides 90 days of usage. Compared to regular USB charging the charging stand provides a more stable charging process of the electric toothbrushes. Beyond charging It is also serves as a convenient storage solution for the sonic electric toothbrush offering a convenient organized experience for both charging and storage 5 Modes Personalized Oral Care - The Clean mode of rechargeable toothbrush offers comprehensive oral cleaning for maintaining oral health; the Whitening brightens tooth color achieving a whitening effect; the Polish enhances tooth surface smoothness and appearance providing an added cosmetic benefit; the Gum Care focuses on gum health delivering a gradual brushing experience; and the Sensitive provides a gentler brushing experience ideal for those with tooth sensitivity "Encouraging Good Habits and IPX7 Waterproof - The electronic toothbrushs 2-minute brushing timer ensures ample brushing time effectively cleaning teeth crevices and gum lines for enhanced cleanliness. The timer also aids in establishing good brushing habits. Additionally the waterproof electric toothbrush boasts a 7-level waterproof capability enabling use during showers or rinsing the toothbrushes under the faucet thus enhancing its convenience of use."]