Weiche wieder aufladbare elektrische mit Ultraschallzahnbürste

Soft Ultrasonic Rechargeable Electric Toothbrush Specifications: Using ultrasonic energy to cavitate periodontal bacteria and clear dirt around periodontal. The cleaning range can cover all parts of the periodontal. Ultrasonic energy can penetrate to the gums, accelerate blood circulation, promote metabolism, inhibit gum inflammation and bleeding, prevent gum recession. counterclockwise 22000 times per minute standard voltage 3.7 V voltage fully-charged 4.2 V timer for