After Fully Charged, Install The U-Shaped Brush Head. Shake Out The Liquid Toothpaste From The Foam, And Then Apply It Evenly On The U-Shaped Brush Head. Put The Brush Head In The Mouth, Relax The Bite U-Shaped Brush Head, And Then Select The Appropriate Frequency Mode. Easily Press The Teeth, And Shake The Brush Back And Forth With Your Hands At The Same Time, And Then Brush Your Teeth For Cleaner After Brushing Your Teeth, Wipe The Water And Retentate On The Body With A Damp Cloth, And Try Not To Soak In Water. Rated Voltage: 3.7V Rated Power: 6.3W Vibration Frequency: 10000-30000 Rpm Battery Capacity: 500 Mah Colour:White Material:Silica Gel Size:11.3*6.6*2.8Cm Package Contents: 1* Electric Toothbrush 1* Toothbrush Head 1*Usb Charging Cable 1*Instruction Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3Cm.