Features: 1. Large, colored and foldable LED screen, which visualizes the process of treatment clearly; 2. Original Switzerland electro-motor, which brings the persistent strong power; 3. Self calibration of the rotation speed and torque, which ensures the accuracy in any condition and any time; 4. Ergonomics design, which brings the convenient operation; 5. 9 kinds of reamers for selection, which each allows 5 programs to set the speed and torque; 6. 3 modes of rotation, which include the auto stop and auto reverse when it reaches the torque you set; 7. Automatic memory, which means the machine can work with certain modes, speed and torque once the they are set before. 8. All the accessories can be sterilized under high temperature (>135); Carton.