USB Rechargeable: Fast charging way by USB. Charging once can be used about 200 times, travel without worrying about power loss.
More flexible And Safer For Use: 5 Grades of adjustable frequency to remove stubborn calculus, tartar, and teeth stain. Automatic outage after fully charged, auto-protective, and energy saving.
Portable Design: Electric Dental Calculus Remover is convenient to have dental care at home, remove the attachment on teeth in time. The low-cost solution in comparison to the dentist and ideal to keep it handy in the bathroom or to take with you when you travel.