USB Charging & Smart Timing ReminderThe sonic electric toothbrush adopts USB charging design and has a battery life of up to 1500mAh. It only takes 4 hours to fully charge and can be used for 60 days. The electric toothbrush has a built-in 2-minute brushing timer and pauses every 30 seconds. It not only helps you reach the time recommended by the dentist, but also reminds you to change the brushing area for effective cleaning.Powerful Sonic CleaningThe electric toothbrush adopts advanced sonic technology to perform powerful and low-noise cleaning through high-frequency vibration. Compared with ordinary toothbrushes, the sonic toothbrush can produce up to 45,000 micro-sonic waves/minute of powerful cleaning, which can bring liquid deep into the teeth, effectively reach deep and perform deep cleaning. With our ultrasonic toothbrush, it only takes 2 weeks to improve the health of teeth and gums.4 Replacement Brush HeadsThe adult electric toothbrush comes with 4 toothbrush heads, which can be used for 1 year. The bristles of the toothbrush head are made of DuPont nylon, which is soft, wear-resistant and non-absorbent. The W-wave brush head fits perfectly on each tooth, rubbing the tooth surface and teeth more closely for a more thorough cleaning.6 brushing modesThe toothbrush has 6 modes, suitable for beginners, gentle, cleaning, whitening, polishing and massage. Suitable for different mouths and gums, you can choose a stronger or softer mode according to the condition of your gums. The electric toothbrush adopts a USB charging design, which is compatible with any charger or device with a USB port, and can be used for 63 days after a full charge!