- Have 3 functions (Clean / Sensitive / White) display for the LED light. LED燈顯示有三段功能模式 ( 清潔 / 護齦 / 美白 ) - Clean about 24000 vibrations per minute, high frequency to clean deep between teeth and gumline 清潔每分鐘震動24000次, 有效深入清潔牙齦邊緣 - Sensitive about 27000 vibrations per minute, gently for cleaning of sensitive gums 護齦每分鐘震動27000次, 溫和清潔敏感牙齦 - White about 31000 vibrations per minute, effectively to remove daily stains on visible teeth 美白每分鐘震動31000次, 有效清除污積 - Voltage: 100V-240V 電壓:100V-240V