Electric Toothbrush Ultrasonic Toothbrush Sonic Rotating Electric Toothbrush with 5 Replacement Brush Heads Wireless Fast Charging Can Be Used for 90 Days on a Single Charge 4 Modes Electric Toothbrush Brushing 2-Minute Auto Timer Function IPX7 Waterproof Low Noise Smart Toothbrush with Storage Case Convenient for Travel 【4 High-Performance Electric Toothbrush Modes】clean (gentle), white (strong), polish (strong reverse frequency), sensitive (soft). It properly matches the condition of each type of teeth and gums. You can select the optimal brushing mode according to your preference or the recommendation of your dentist. 【21 Days of Use & 3 Types of Brushes】Can be used for 21 days with a 4-hour charge, perfect for travel and business trips. Equipped with a charging reminder, the red light flashes 10 times when the power is less than 30%. Comes with brushes for daily use and whitening, and when combined with the corresponding modes, the plaque removal power becomes more apparent. 5 replaceable brush heads are included, usable for 15 months. 【2-Minute Timer, Double Buttons, IPX7 Waterproof】Equipped with a 2-minute timer to prevent over-brushing. The 30-second interval reminder ensures that each area of the teeth is brushed. With double buttons, the mode button and power button are separated, making operation easier. IPX7 waterproof, so you can use it in the bath or shower. 【Excellent Cleaning Effect】This rotating electric toothbrush wraps the bristles around the teeth and vibrates 8,000 times per minute, removing 10 times more dirt and plaque than a manual toothbrush. It suppresses noise and hand vibration, making it easy to clean your teeth.