Product information Product name: sonic electric toothbrush model: TB1201 Manufacturer ‏ : ‎ chaojia Country of Origin ‏ : ‎ China Standard: 1 handle, 1 charger, 2 brush heads, 1 manual, 1 color box Weight:115g size: 24.5cm*Зcm*Зcm Operating principle:sound wave vibration Vibration frequency :the highest 48000/min Bristle material :PBT sharp hair Battery: Built-in rechargeable battery Waterproof design : IPX7 Cleaning modes : five modes of cleaning Charge mode: USB wireless charging, input voltage:100-240v C Product description Chaojia Sonic Toothbrushes provide clinically proven cleaning results superior to regular manual toothbrushes. 1. It has 5 working modes: "Clean", "White", "Polish", "Massage", "Sensitive", 2. Corresponding to different working modes, it has high-frequency pulse stroke, which can meet various oral care needs: sensitive gum care, deep cleaning, double cleaning (1) Up to 31,000 strokes per minute, excellent cleaning of the oral cavity; (2) Up to 41,000 strokes per minute ，Effectively cleans plaque, dirt; (3) Up to 48,000 strokes per minute, the Tooth dirt will be effectively scrubbed so fast; (4) Up to 31,000 times per minute, strong to weak, weak to strong circulation, Gently massage the gums; (5) Weak 28,000 times per minute, gentle cleaning for sensitive areas 3. Switching the working mode By pressing the on/off button at different times, switch from clean--white--polish--massage--sensitive--the device will turn off. If you press any mode for more than 5 seconds, the device turns off. Cleaning and charging: After brushing your teeth, rinse the brush head and handle with running water, and wipe dry, then place the handle on the charging unit; before cleaning the charging unit, be sure to unplug the adapter, and only use a dry