? & ? We promise: , if you have any problems, please contact us. Buy it with Confidence. Login your account > choose "Your orders" > find the order ID > click "Contact seller". ?QUICK SWITCH-OFF? Based on Many Loyal Customers Who Struggle Because They are Not Sure How To Turn Off The Power Quickly. For This Reason, The Designer Has Come Up with a Quick Tip: Simply Press and Hold The Switch to Quickly Stop the Electric Toothbrush After Brushing, Without Having to Cycle Through All The Modes Before Switching It Off!. ?IPX7 Waterproof and 2-Mins Timer?Develop Healthy Tooth Brushing Habits: Built-in 2 minutes timer to ensure scientific brushing time, the sonic electric toothbrush pauses every 30 seconds to remind you to change the brushing area. And you can rinse it easily or use it in the shower with IPX7 waterproof. ?8 Replaccement Heads for over 24 Months Using?The recommended use cycle of the brush head is three months, and not replacing the brush head for a long time will affect the cleaning effect. We have plenty of replacement brushes to solve the long-term replacement needs. ?5 High-performance Modes &Suitable for people?- Electric toothbrush for adults & kids supports 5 modes based on your specific needs :Suitable for kids :Universal for all populations : Suitable for Adults :clean after meals :Nightly Gentle Cleansing.