The features are as follows: 
1. 5 settings for adjustable rotational speed ranging from 125 to 625rpm.
2. If the torque of the enlarging needle exceeds the regulated value, the needle of the handpiece will reverse to avoid the break-off .
3. Preset rotational speed procedure for easy choice in the treatment.
4. Easy operating with LCD screen-what you see, what you get.
5. Build-in battery for easy operation.

 1. Voltage: DC18V               2. Current: <500mA

 3. Power: 9w                        4. Speed: 125-625 rpm

 5. Torque: 0-20mn*m         6. Display: reflecting LCD screen

 7. Battery: chargeable Li-on battery 3.7V×4